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Select.js
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Select.js
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import React from 'react';
import ReactDOM from 'react-dom';
import Input from 'react-input-autosize';
import classNames from 'classnames';
import stripDiacritics from './utils/stripDiacritics';
import Async from './Async';
import Option from './Option';
import Value from './Value';
function stringifyValue (value) {
if (typeof value === 'object') {
return JSON.stringify(value);
} else {
return value;
}
}
const stringOrNode = React.PropTypes.oneOfType([
React.PropTypes.string,
React.PropTypes.node
]);
const Select = React.createClass({
displayName: 'Select',
propTypes: {
addLabelText: React.PropTypes.string, // placeholder displayed when you want to add a label on a multi-value input
autosize: React.PropTypes.bool, // whether to enable autosizing or not
allowCreate: React.PropTypes.bool, // whether to allow creation of new entries
autoBlur: React.PropTypes.bool,
autofocus: React.PropTypes.bool, // autofocus the component on mount
backspaceRemoves: React.PropTypes.bool, // whether backspace removes an item if there is no text input
className: React.PropTypes.string, // className for the outer element
clearAllText: stringOrNode, // title for the "clear" control when multi: true
clearValueText: stringOrNode, // title for the "clear" control
clearable: React.PropTypes.bool, // should it be possible to reset value
delimiter: React.PropTypes.string, // delimiter to use to join multiple values for the hidden field value
disabled: React.PropTypes.bool, // whether the Select is disabled or not
escapeClearsValue: React.PropTypes.bool, // whether escape clears the value when the menu is closed
filterOption: React.PropTypes.func, // method to filter a single option (option, filterString)
filterOptions: React.PropTypes.any, // boolean to enable default filtering or function to filter the options array ([options], filterString, [values])
ignoreAccents: React.PropTypes.bool, // whether to strip diacritics when filtering
ignoreCase: React.PropTypes.bool, // whether to perform case-insensitive filtering
inputProps: React.PropTypes.object, // custom attributes for the Input
isLoading: React.PropTypes.bool, // whether the Select is loading externally or not (such as options being loaded)
joinValues: React.PropTypes.bool, // joins multiple values into a single form field with the delimiter (legacy mode)
labelKey: React.PropTypes.string, // path of the label value in option objects
matchPos: React.PropTypes.string, // (any|start) match the start or entire string when filtering
matchProp: React.PropTypes.string, // (any|label|value) which option property to filter on
menuBuffer: React.PropTypes.number, // optional buffer (in px) between the bottom of the viewport and the bottom of the menu
menuContainerStyle: React.PropTypes.object, // optional style to apply to the menu container
menuStyle: React.PropTypes.object, // optional style to apply to the menu
multi: React.PropTypes.bool, // multi-value input
name: React.PropTypes.string, // generates a hidden <input /> tag with this field name for html forms
newOptionCreator: React.PropTypes.func, // factory to create new options when allowCreate set
noResultsText: stringOrNode, // placeholder displayed when there are no matching search results
onBlur: React.PropTypes.func, // onBlur handler: function (event) {}
onBlurResetsInput: React.PropTypes.bool, // whether input is cleared on blur
onChange: React.PropTypes.func, // onChange handler: function (newValue) {}
onClose: React.PropTypes.func, // fires when the menu is closed
onFocus: React.PropTypes.func, // onFocus handler: function (event) {}
onInputChange: React.PropTypes.func, // onInputChange handler: function (inputValue) {}
onMenuScrollToBottom: React.PropTypes.func, // fires when the menu is scrolled to the bottom; can be used to paginate options
onOpen: React.PropTypes.func, // fires when the menu is opened
onValueClick: React.PropTypes.func, // onClick handler for value labels: function (value, event) {}
optionComponent: React.PropTypes.func, // option component to render in dropdown
optionRenderer: React.PropTypes.func, // optionRenderer: function (option) {}
options: React.PropTypes.array, // array of options
placeholder: stringOrNode, // field placeholder, displayed when there's no value
required: React.PropTypes.bool, // applies HTML5 required attribute when needed
scrollMenuIntoView: React.PropTypes.bool, // boolean to enable the viewport to shift so that the full menu fully visible when engaged
searchable: React.PropTypes.bool, // whether to enable searching feature or not
simpleValue: React.PropTypes.bool, // pass the value to onChange as a simple value (legacy pre 1.0 mode), defaults to false
style: React.PropTypes.object, // optional style to apply to the control
tabIndex: React.PropTypes.string, // optional tab index of the control
value: React.PropTypes.any, // initial field value
valueComponent: React.PropTypes.func, // value component to render
valueKey: React.PropTypes.string, // path of the label value in option objects
valueRenderer: React.PropTypes.func, // valueRenderer: function (option) {}
wrapperStyle: React.PropTypes.object, // optional style to apply to the component wrapper
},
statics: { Async },
getDefaultProps () {
return {
addLabelText: 'Add "{label}"?',
autosize: true,
allowCreate: false,
backspaceRemoves: true,
clearable: true,
clearAllText: 'Clear all',
clearValueText: 'Clear value',
delimiter: ',',
disabled: false,
escapeClearsValue: true,
filterOptions: true,
ignoreAccents: true,
ignoreCase: true,
inputProps: {},
isLoading: false,
joinValues: false,
labelKey: 'label',
matchPos: 'any',
matchProp: 'any',
menuBuffer: 0,
multi: false,
noResultsText: 'No results found',
onBlurResetsInput: true,
optionComponent: Option,
placeholder: 'Select...',
required: false,
scrollMenuIntoView: true,
searchable: true,
simpleValue: false,
valueComponent: Value,
valueKey: 'value',
};
},
getInitialState () {
return {
inputValue: '',
isFocused: false,
isLoading: false,
isOpen: false,
isPseudoFocused: false,
required: this.props.required && this.handleRequired(this.props.value, this.props.multi)
};
},
componentDidMount () {
if (this.props.autofocus) {
this.focus();
}
},
componentWillReceiveProps(nextProps) {
if (this.props.value !== nextProps.value && nextProps.required) {
this.setState({
required: this.handleRequired(nextProps.value, nextProps.multi),
});
}
},
componentWillUpdate (nextProps, nextState) {
if (nextState.isOpen !== this.state.isOpen) {
const handler = nextState.isOpen ? nextProps.onOpen : nextProps.onClose;
handler && handler();
}
},
componentDidUpdate (prevProps, prevState) {
// focus to the selected option
if (this.refs.menu && this.refs.focused && this.state.isOpen && !this.hasScrolledToOption) {
let focusedOptionNode = ReactDOM.findDOMNode(this.refs.focused);
let menuNode = ReactDOM.findDOMNode(this.refs.menu);
menuNode.scrollTop = focusedOptionNode.offsetTop;
this.hasScrolledToOption = true;
} else if (!this.state.isOpen) {
this.hasScrolledToOption = false;
}
if (prevState.inputValue !== this.state.inputValue && this.props.onInputChange) {
this.props.onInputChange(this.state.inputValue);
}
if (this._scrollToFocusedOptionOnUpdate && this.refs.focused && this.refs.menu) {
this._scrollToFocusedOptionOnUpdate = false;
var focusedDOM = ReactDOM.findDOMNode(this.refs.focused);
var menuDOM = ReactDOM.findDOMNode(this.refs.menu);
var focusedRect = focusedDOM.getBoundingClientRect();
var menuRect = menuDOM.getBoundingClientRect();
if (focusedRect.bottom > menuRect.bottom || focusedRect.top < menuRect.top) {
menuDOM.scrollTop = (focusedDOM.offsetTop + focusedDOM.clientHeight - menuDOM.offsetHeight);
}
}
if (this.props.scrollMenuIntoView && this.refs.menuContainer) {
var menuContainerRect = this.refs.menuContainer.getBoundingClientRect();
if (window.innerHeight < menuContainerRect.bottom + this.props.menuBuffer) {
window.scrollTo(0, window.scrollY + menuContainerRect.bottom + this.props.menuBuffer - window.innerHeight);
}
}
if (prevProps.disabled !== this.props.disabled) {
this.setState({ isFocused: false }); // eslint-disable-line react/no-did-update-set-state
}
},
focus () {
if (!this.refs.input) return;
this.refs.input.focus();
},
blurInput() {
if (!this.refs.input) return;
this.refs.input.blur();
},
handleTouchMove (event) {
// Set a flag that the view is being dragged
this.dragging = true;
},
handleTouchStart (event) {
// Set a flag that the view is not being dragged
this.dragging = false;
},
handleTouchEnd (event) {
// Check if the view is being dragged, In this case
// we don't want to fire the click event (because the user only wants to scroll)
if(this.dragging) return;
// Fire the mouse events
this.handleMouseDown(event);
},
handleTouchEndClearValue (event) {
// Check if the view is being dragged, In this case
// we don't want to fire the click event (because the user only wants to scroll)
if(this.dragging) return;
// Clear the value
this.clearValue(event);
},
handleMouseDown (event) {
// if the event was triggered by a mousedown and not the primary
// button, or if the component is disabled, ignore it.
if (this.props.disabled || (event.type === 'mousedown' && event.button !== 0)) {
return;
}
// prevent default event handlers
event.stopPropagation();
event.preventDefault();
// for the non-searchable select, toggle the menu
if (!this.props.searchable) {
this.focus();
return this.setState({
isOpen: !this.state.isOpen,
});
}
if (this.state.isFocused) {
// if the input is focused, ensure the menu is open
this.setState({
isOpen: true,
isPseudoFocused: false,
});
} else {
// otherwise, focus the input and open the menu
this._openAfterFocus = true;
this.focus();
}
},
handleMouseDownOnArrow (event) {
// if the event was triggered by a mousedown and not the primary
// button, or if the component is disabled, ignore it.
if (this.props.disabled || (event.type === 'mousedown' && event.button !== 0)) {
return;
}
// If the menu isn't open, let the event bubble to the main handleMouseDown
if (!this.state.isOpen) {
return;
}
// prevent default event handlers
event.stopPropagation();
event.preventDefault();
// close the menu
this.closeMenu();
},
handleMouseDownOnMenu (event) {
// if the event was triggered by a mousedown and not the primary
// button, or if the component is disabled, ignore it.
if (this.props.disabled || (event.type === 'mousedown' && event.button !== 0)) {
return;
}
event.stopPropagation();
event.preventDefault();
this._openAfterFocus = true;
this.focus();
},
closeMenu () {
this.setState({
isOpen: false,
isPseudoFocused: this.state.isFocused && !this.props.multi,
inputValue: '',
});
this.hasScrolledToOption = false;
},
handleInputFocus (event) {
var isOpen = this.state.isOpen || this._openAfterFocus;
if (this.props.onFocus) {
this.props.onFocus(event);
}
this.setState({
isFocused: true,
isOpen: isOpen
});
this._openAfterFocus = false;
},
handleInputBlur (event) {
if (this.refs.menu && document.activeElement.isEqualNode(this.refs.menu)) {
return;
}
if (this.props.onBlur) {
this.props.onBlur(event);
}
var onBlurredState = {
isFocused: false,
isOpen: false,
isPseudoFocused: false,
};
if (this.props.onBlurResetsInput) {
onBlurredState.inputValue = '';
}
this.setState(onBlurredState);
},
handleInputChange (event) {
this.setState({
isOpen: true,
isPseudoFocused: false,
inputValue: event.target.value,
});
},
handleKeyDown (event) {
if (this.props.disabled) return;
switch (event.keyCode) {
case 8: // backspace
if (!this.state.inputValue && this.props.backspaceRemoves) {
event.preventDefault();
this.popValue();
}
return;
case 9: // tab
if (event.shiftKey || !this.state.isOpen) {
return;
}
this.selectFocusedOption();
return;
case 13: // enter
if (!this.state.isOpen) return;
event.stopPropagation();
this.selectFocusedOption();
break;
case 27: // escape
if (this.state.isOpen) {
this.closeMenu();
} else if (this.props.clearable && this.props.escapeClearsValue) {
this.clearValue(event);
}
break;
case 38: // up
this.focusPreviousOption();
break;
case 40: // down
this.focusNextOption();
break;
// case 188: // ,
// if (this.props.allowCreate && this.props.multi) {
// event.preventDefault();
// event.stopPropagation();
// this.selectFocusedOption();
// } else {
// return;
// }
// break;
default: return;
}
event.preventDefault();
},
handleValueClick (option, event) {
if (!this.props.onValueClick) return;
this.props.onValueClick(option, event);
},
handleMenuScroll (event) {
if (!this.props.onMenuScrollToBottom) return;
let { target } = event;
if (target.scrollHeight > target.offsetHeight && !(target.scrollHeight - target.offsetHeight - target.scrollTop)) {
this.props.onMenuScrollToBottom();
}
},
handleRequired (value, multi) {
if (!value) return true;
return (multi ? value.length === 0 : Object.keys(value).length === 0);
},
getOptionLabel (op) {
return op[this.props.labelKey];
},
getValueArray () {
let value = this.props.value;
if (this.props.multi) {
if (typeof value === 'string') value = value.split(this.props.delimiter);
if (!Array.isArray(value)) {
if (value === null || value === undefined) return [];
value = [value];
}
return value.map(this.expandValue).filter(i => i);
}
var expandedValue = this.expandValue(value);
return expandedValue ? [expandedValue] : [];
},
expandValue (value) {
if (typeof value !== 'string' && typeof value !== 'number') return value;
let { options, valueKey } = this.props;
if (!options) return;
for (var i = 0; i < options.length; i++) {
if (options[i][valueKey] === value) return options[i];
}
},
setValue (value) {
if (this.props.autoBlur){
this.blurInput();
}
if (!this.props.onChange) return;
if (this.props.required) {
const required = this.handleRequired(value, this.props.multi);
this.setState({ required });
}
if (this.props.simpleValue && value) {
value = this.props.multi ? value.map(i => i[this.props.valueKey]).join(this.props.delimiter) : value[this.props.valueKey];
}
this.props.onChange(value);
},
selectValue (value) {
this.hasScrolledToOption = false;
if (this.props.multi) {
this.addValue(value);
this.setState({
inputValue: '',
});
} else {
this.setValue(value);
this.setState({
isOpen: false,
inputValue: '',
isPseudoFocused: this.state.isFocused,
});
}
},
addValue (value) {
var valueArray = this.getValueArray();
this.setValue(valueArray.concat(value));
},
popValue () {
var valueArray = this.getValueArray();
if (!valueArray.length) return;
if (valueArray[valueArray.length-1].clearableValue === false) return;
this.setValue(valueArray.slice(0, valueArray.length - 1));
},
removeValue (value) {
var valueArray = this.getValueArray();
this.setValue(valueArray.filter(i => i !== value));
this.focus();
},
clearValue (event) {
// if the event was triggered by a mousedown and not the primary
// button, ignore it.
if (event && event.type === 'mousedown' && event.button !== 0) {
return;
}
event.stopPropagation();
event.preventDefault();
this.setValue(null);
this.setState({
isOpen: false,
inputValue: '',
}, this.focus);
},
focusOption (option) {
this.setState({
focusedOption: option
});
},
focusNextOption () {
this.focusAdjacentOption('next');
},
focusPreviousOption () {
this.focusAdjacentOption('previous');
},
focusAdjacentOption (dir) {
var options = this._visibleOptions.filter(i => !i.disabled);
this._scrollToFocusedOptionOnUpdate = true;
if (!this.state.isOpen) {
this.setState({
isOpen: true,
inputValue: '',
focusedOption: this._focusedOption || options[dir === 'next' ? 0 : options.length - 1]
});
return;
}
if (!options.length) return;
var focusedIndex = -1;
for (var i = 0; i < options.length; i++) {
if (this._focusedOption === options[i]) {
focusedIndex = i;
break;
}
}
var focusedOption = options[0];
if (dir === 'next' && focusedIndex > -1 && focusedIndex < options.length - 1) {
focusedOption = options[focusedIndex + 1];
} else if (dir === 'previous') {
if (focusedIndex > 0) {
focusedOption = options[focusedIndex - 1];
} else {
focusedOption = options[options.length - 1];
}
}
this.setState({
focusedOption: focusedOption
});
},
selectFocusedOption () {
// if (this.props.allowCreate && !this.state.focusedOption) {
// return this.selectValue(this.state.inputValue);
// }
if (this._focusedOption) {
return this.selectValue(this._focusedOption);
}
},
renderLoading () {
if (!this.props.isLoading) return;
return (
<span className="Select-loading-zone" aria-hidden="true">
<span className="Select-loading" />
</span>
);
},
renderValue (valueArray, isOpen) {
let renderLabel = this.props.valueRenderer || this.getOptionLabel;
let ValueComponent = this.props.valueComponent;
if (!valueArray.length) {
return !this.state.inputValue ? <div className="Select-placeholder">{this.props.placeholder}</div> : null;
}
let onClick = this.props.onValueClick ? this.handleValueClick : null;
if (this.props.multi) {
return valueArray.map((value, i) => {
return (
<ValueComponent
disabled={this.props.disabled || value.clearableValue === false}
key={`value-${i}-${value[this.props.valueKey]}`}
onClick={onClick}
onRemove={this.removeValue}
value={value}
>
{renderLabel(value)}
</ValueComponent>
);
});
} else if (!this.state.inputValue) {
if (isOpen) onClick = null;
return (
<ValueComponent
disabled={this.props.disabled}
onClick={onClick}
value={valueArray[0]}
>
{renderLabel(valueArray[0])}
</ValueComponent>
);
}
},
renderInput (valueArray) {
var className = classNames('Select-input', this.props.inputProps.className);
if (this.props.disabled || !this.props.searchable) {
return (
<div
{...this.props.inputProps}
className={className}
tabIndex={this.props.tabIndex || 0}
onBlur={this.handleInputBlur}
onFocus={this.handleInputFocus}
ref="input"
style={{ border: 0, width: 1, display:'inline-block' }}/>
);
}
if (this.props.autosize) {
return (
<Input
{...this.props.inputProps}
className={className}
tabIndex={this.props.tabIndex}
onBlur={this.handleInputBlur}
onChange={this.handleInputChange}
onFocus={this.handleInputFocus}
minWidth="5"
ref="input"
required={this.state.required}
value={this.state.inputValue}
/>
);
}
return (
<div className={ className }>
<input
{...this.props.inputProps}
tabIndex={this.props.tabIndex}
onBlur={this.handleInputBlur}
onChange={this.handleInputChange}
onFocus={this.handleInputFocus}
ref="input"
required={this.state.required}
value={this.state.inputValue}
/>
</div>
);
},
renderClear () {
if (!this.props.clearable || !this.props.value || (this.props.multi && !this.props.value.length) || this.props.disabled || this.props.isLoading) return;
return (
<span className="Select-clear-zone" title={this.props.multi ? this.props.clearAllText : this.props.clearValueText}
aria-label={this.props.multi ? this.props.clearAllText : this.props.clearValueText}
onMouseDown={this.clearValue}
onTouchStart={this.handleTouchStart}
onTouchMove={this.handleTouchMove}
onTouchEnd={this.handleTouchEndClearValue}>
<span className="Select-clear" dangerouslySetInnerHTML={{ __html: '×' }} />
</span>
);
},
renderArrow () {
return (
<span className="Select-arrow-zone" onMouseDown={this.handleMouseDownOnArrow}>
<span className="Select-arrow" onMouseDown={this.handleMouseDownOnArrow} />
</span>
);
},
filterOptions (excludeOptions) {
var filterValue = this.state.inputValue;
var options = this.props.options || [];
if (typeof this.props.filterOptions === 'function') {
return this.props.filterOptions.call(this, options, filterValue, excludeOptions);
} else if (this.props.filterOptions) {
if (this.props.ignoreAccents) {
filterValue = stripDiacritics(filterValue);
}
if (this.props.ignoreCase) {
filterValue = filterValue.toLowerCase();
}
if (excludeOptions) excludeOptions = excludeOptions.map(i => i[this.props.valueKey]);
return options.filter(option => {
if (excludeOptions && excludeOptions.indexOf(option[this.props.valueKey]) > -1) return false;
if (this.props.filterOption) return this.props.filterOption.call(this, option, filterValue);
if (!filterValue) return true;
var valueTest = String(option[this.props.valueKey]);
var labelTest = String(option[this.props.labelKey]);
if (this.props.ignoreAccents) {
if (this.props.matchProp !== 'label') valueTest = stripDiacritics(valueTest);
if (this.props.matchProp !== 'value') labelTest = stripDiacritics(labelTest);
}
if (this.props.ignoreCase) {
if (this.props.matchProp !== 'label') valueTest = valueTest.toLowerCase();
if (this.props.matchProp !== 'value') labelTest = labelTest.toLowerCase();
}
return this.props.matchPos === 'start' ? (
(this.props.matchProp !== 'label' && valueTest.substr(0, filterValue.length) === filterValue) ||
(this.props.matchProp !== 'value' && labelTest.substr(0, filterValue.length) === filterValue)
) : (
(this.props.matchProp !== 'label' && valueTest.indexOf(filterValue) >= 0) ||
(this.props.matchProp !== 'value' && labelTest.indexOf(filterValue) >= 0)
);
});
} else {
return options;
}
},
renderMenu (options, valueArray, focusedOption) {
if (options && options.length) {
let Option = this.props.optionComponent;
let renderLabel = this.props.optionRenderer || this.getOptionLabel;
return options.map((option, i) => {
let isSelected = valueArray && valueArray.indexOf(option) > -1;
let isFocused = option === focusedOption;
let optionRef = isFocused ? 'focused' : null;
let optionClass = classNames({
'Select-option': true,
'is-selected': isSelected,
'is-focused': isFocused,
'is-disabled': option.disabled,
});
return (
<Option
className={optionClass}
isDisabled={option.disabled}
isFocused={isFocused}
key={`option-${i}-${option[this.props.valueKey]}`}
onSelect={this.selectValue}
onFocus={this.focusOption}
option={option}
isSelected={isSelected}
ref={optionRef}
>
{renderLabel(option)}
</Option>
);
});
} else if (this.props.noResultsText) {
return (
<div className="Select-noresults">
{this.props.noResultsText}
</div>
);
} else {
return null;
}
},
renderHiddenField (valueArray) {
if (!this.props.name) return;
if (this.props.joinValues) {
let value = valueArray.map(i => stringifyValue(i[this.props.valueKey])).join(this.props.delimiter);
return (
<input
type="hidden"
ref="value"
name={this.props.name}
value={value}
disabled={this.props.disabled} />
);
}
return valueArray.map((item, index) => (
<input key={'hidden.' + index}
type="hidden"
ref={'value' + index}
name={this.props.name}
value={stringifyValue(item[this.props.valueKey])}
disabled={this.props.disabled} />
));
},
getFocusableOption (selectedOption) {
var options = this._visibleOptions;
if (!options.length) return;
let focusedOption = this.state.focusedOption || selectedOption;
if (focusedOption && options.indexOf(focusedOption) > -1) return focusedOption;
for (var i = 0; i < options.length; i++) {
if (!options[i].disabled) return options[i];
}
},
render () {
let valueArray = this.getValueArray();
let options = this._visibleOptions = this.filterOptions(this.props.multi ? valueArray : null);
let isOpen = this.state.isOpen;
if (this.props.multi && !options.length && valueArray.length && !this.state.inputValue) isOpen = false;
let focusedOption = this._focusedOption = this.getFocusableOption(valueArray[0]);
let className = classNames('Select', this.props.className, {
'Select--multi': this.props.multi,
'is-disabled': this.props.disabled,
'is-focused': this.state.isFocused,
'is-loading': this.props.isLoading,
'is-open': isOpen,
'is-pseudo-focused': this.state.isPseudoFocused,
'is-searchable': this.props.searchable,
'has-value': valueArray.length,
});
return (
<div ref="wrapper" className={className} style={this.props.wrapperStyle}>
{this.renderHiddenField(valueArray)}
<div ref="control"
className="Select-control"
style={this.props.style}
onKeyDown={this.handleKeyDown}
onMouseDown={this.handleMouseDown}
onTouchEnd={this.handleTouchEnd}
onTouchStart={this.handleTouchStart}
onTouchMove={this.handleTouchMove}>
{this.renderValue(valueArray, isOpen)}
{this.renderInput(valueArray)}
{this.renderLoading()}
{this.renderClear()}
{this.renderArrow()}
</div>
{isOpen ? (
<div ref="menuContainer" className="Select-menu-outer" style={this.props.menuContainerStyle}>
<div ref="menu" className="Select-menu"
style={this.props.menuStyle}
onScroll={this.handleMenuScroll}
onMouseDown={this.handleMouseDownOnMenu}>
{this.renderMenu(options, !this.props.multi ? valueArray : null, focusedOption)}
</div>
</div>
) : null}
</div>
);
}
});
export default Select;