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jsHomeWork1.js
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jsHomeWork1.js
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function handleArgType(arg) {
var stringMethodsName = "stringMethods",
numberMethodsName = "numberMethods",
arrayMethodsName = "arrayMethods";
function emptyArgLogger(argType) {
return console.log("empty "+ argType +" is not a representative argument for test methods")
}
function handleMethodArrays(methodsObj, arg) {
function getRandomNumber(int) {
var random = Math.floor(Math.random() * (int - 1));
return random;
};
function getRandomString(int) {
var text;
var possible = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
for( var i=0; i < int; i++ )
text += possible.charAt(getRandomNumber(possible.length - 1));
return text;
};
function getArgPart(argLength, method) {
var randomChar1 = getRandomNumber(argLength),
randomChar2 = getRandomNumber(argLength),
part,
result = [];
if (randomChar1 > randomChar2) {
part = arg[method](randomChar2, randomChar1);
otherArgs = randomChar2 + "," + randomChar1;
result.push(part, randomChar2, randomChar1);
} else if (randomChar1 < randomChar2) {
part = arg[method](randomChar1, randomChar2)
result.push(part, randomChar1, randomChar2);
} else {
randomChar1 = randomChar1 + getRandomNumber(argLength - (1 + randomChar1));
part = arg[method](randomChar2, randomChar1);
result.push(part, randomChar2, randomChar1);
}
return result;
};
function arrayStringify(array) {
return "['" + array.join("','") + "']";
};
var methodArrayLength = methodsObj.methodArray.length,
result,
argLength,
otherArgs;
switch (methodsObj.name) {
case stringMethodsName:
argLength = arg.length;
if (argLength === 0) {
emptyArgLogger("string");
} else {
var argRandomCharIndex = getRandomNumber(argLength),
argPart;
for (var i = 0; i < methodArrayLength; i++) {
if (i === 0 || i === 1) { //charAt, charcodeAt
result = arg[methodsObj.methodArray[i]](argRandomCharIndex);
methodLogger(arg, methodsObj.methodArray[i], argRandomCharIndex, result);
} else if (i === 2 || i === 6) { //concat, localCompare
var randomString = getRandomString(getRandomNumber(15)),
result = arg[methodsObj.methodArray[i]](randomString);
methodLogger(arg, methodsObj.methodArray[i], randomString, result);
} else if (i === 3) { //fromCharCode
var resultStringLength = getRandomNumber(25),
unicodeEnCharsUpperLength = 90-65,
unicodeResultChars = [];
for (var i = 0; i < resultStringLength; i++) {
var unicdeCharCode = 64 + getRandomNumber(25);
unicodeResultChars.push(unicdeCharCode)
result += String.fromCharCode(unicdeCharCode);
}
methodLogger(arg, methodsObj.methodArray[i], unicodeResultChars.toString(), result, "String");
} else if (i === 4 || i === 5 || i === 7 || i === 9) { //indeOf, lastIndexOf, match, search
var argPart = getArgPart(argLength, methodsObj.methodArray[10]);
result = arg[methodsObj.methodArray[i]](argPart[0]);
methodLogger(arg, methodsObj.methodArray[i], argPart[0], result);
} else if (i === 8) { //replace
argPart = getArgPart(argLength, methodsObj.methodArray[10]);
var randomString = getRandomString(getRandomNumber(10));
result = arg[methodsObj.methodArray[i]](argPart, randomString);
methodLogger(arg, methodsObj.methodArray[i], argPart, result);
} else if (i === 10) {//slice,
argPart = getArgPart(argLength, methodsObj.methodArray[i]);
otherArgs = argPart[1]+ "," +argPart[2];
methodLogger(arg, methodsObj.methodArray[i], otherArgs, argPart[0]);
} else if (i === 11) { //split
otherArgs = arg.charAt(argRandomCharIndex);
result = arg[methodsObj.methodArray[i]](otherArgs);
methodLogger(arg, methodsObj.methodArray[i], otherArgs, result);
} else if (i === 12) { //substr
argPart = getArgPart(argLength, methodsObj.methodArray[12]);
methodLogger(arg, methodsObj.methodArray[i], argPart[1]+ "," +argPart[2], argPart[0]);
} else if (i === 13) { //substring
argPart = getArgPart(argLength, methodsObj.methodArray[13]);
methodLogger(arg, methodsObj.methodArray[i], argPart[1]+ "," +argPart[2], argPart[0]);
} else { //"toLocaleLowerCase", "toLocaleUpperCase", "toLowerCase", "toString", "toUpperCase", "trim", "valueOf"
result = arg[methodsObj.methodArray[i]]();
methodLogger(arg, methodsObj.methodArray[i], "", result);
}
}
};
break;
case numberMethodsName:
for (var i = 0; i < methodArrayLength; i++) {
if (i === 1 || i === 2 || i === 3) { //"toExponential","toFixed","toPrecision"
var intString = arg.toString(),
intStringLength = intString.length;
otherArgs = getRandomNumber(intStringLength);
if (otherArgs === 0) {
otherArgs = 1;
}
result = arg[methodsObj.methodArray[i]](otherArgs);
methodLogger(arg, methodsObj.methodArray[i], otherArgs, result);
} else { //"valueOf,"toString"
result = arg[methodsObj.methodArray[i]]();
methodLogger(arg, methodsObj.methodArray[i], "", result);
}
}
break;
case arrayMethodsName:
argLength = arg.length;
if (argLength === 0) {
emptyArgLogger("Array");
} else {
var argCopy;
for (var i = 0; i < methodArrayLength; i++) {
if (i === 0) { //concat
argCopy = arg.slice();
result = argCopy[methodsObj.methodArray[i]](arg);
methodLogger(arrayStringify(arg), methodsObj.methodArray[i], arrayStringify(arg), arrayStringify(result));
} else if (i === 1 || i === 3 || i === 5 || i === 12) { //indexOf, lastIndexOf, push, unshift
argCopy = arg.slice();
var randomArgMember = argCopy[getRandomNumber(argLength)];
result = argCopy[methodsObj.methodArray[i]](randomArgMember);
if (typeof randomArgMember === "object") {
randomArgMember = randomArgMember.toString();
} else if (randomArgMember instanceof Array) {
randomArgMember = arrayStringify(result);
}
methodLogger(arrayStringify(arg), methodsObj.methodArray[i], randomArgMember, result);
} else if (i === 8) { //slice
var resultArr = getArgPart(argLength, methodsObj.methodArray[i]);
result = arrayStringify(resultArr[0]);
otherArgs = resultArr[1] + "," + resultArr[2];
methodLogger(arrayStringify(arg), methodsObj.methodArray[i], otherArgs, result);
} else if (i === 10) { //splice
argCopy = arg.slice();
var newMemeber = getRandomNumber(15),
randomArgPosition = getRandomNumber(argLength),
randomMemberRemove = getRandomNumber(argLength);
result = argCopy[methodsObj.methodArray[i]](randomArgPosition, randomMemberRemove, newMemeber);
methodLogger(arrayStringify(arg), methodsObj.methodArray[i], randomArgPosition+","+randomMemberRemove+","+newMemeber, arrayStringify(result));
} else if (i === 4 || i === 7) { //pop, shift
argCopy = arg.slice();
result = argCopy[methodsObj.methodArray[i]]();
methodLogger(arrayStringify(arg), methodsObj.methodArray[i], "", result);
}
else { //join, reverse, sort, toString, valuOf
argCopy = arg.slice();
result = argCopy[methodsObj.methodArray[i]]();
if (i === 6 || i === 9) {
result = arrayStringify(result);
}
methodLogger(arrayStringify(arg), methodsObj.methodArray[i], "", result);
}
}
};
break;
}
};
function methodLogger(arg, methodName, otherArgs, result, altArg) {
if (typeof arg === "object") {
return console.log("___________\n Log for Array method " + methodName + ":\n Argument: " + arg + "\n Using: " + arg + "." + methodName + "(" + otherArgs + ");\n Result: " + result);
} else if (typeof arg === "string" && altArg !== undefined) {
return console.log("___________\n Log for " + typeof arg + " method " + methodName + ":\n Argument: " + arg + "\n Using: " + altArg + "." + methodName + "(" + otherArgs + ");\n Result: " + result);
} else {
return console.log("___________\n Log for " + typeof arg + " method " + methodName + ":\n Argument: " + arg + "\n Using: " + arg + "." + methodName + "(" + otherArgs + ");\n Result: " + result);
}
};
if (typeof arg === "string") {
var stringMethods = {
methodArray: ["charAt", "charCodeAt", "concat", "fromCharCode", "indexOf", "lastIndexOf", "localeCompare", "match", "replace", "search", "slice", "split", "substr", "substring", "toLocaleLowerCase", "toLocaleUpperCase", "toLowerCase", "toString", "toUpperCase", "trim", "valueOf"],
name: stringMethodsName
}
handleMethodArrays(stringMethods, arg);
} else if (typeof arg === "number") {
var numberMethods = {
methodArray: ["toString","toExponential","toFixed","toPrecision","valueOf"],
name: numberMethodsName
}
handleMethodArrays(numberMethods, arg);
} else if (arg instanceof Array) {
var arrayMethods = {
methodArray: ["concat","indexOf","join","lastIndexOf","pop","push","reverse","shift","slice","sort","splice","toString","unshift","valueOf"],
name: arrayMethodsName
}
handleMethodArrays(arrayMethods, arg);
} else {
console.log("such argument functon is not supported, pleae enter as argument string or number or array");
};
};