0.1.9

package.json

@@ -1,6 +1,6 @@
 {
   "name": "pipes",
-  "version": "0.1.8",
+  "version": "0.1.9",
   "author": "Kapil Neurgaonkar",
   "description": "A collection of Angular libraries",
   "license": "MIT",
@@ -25,39 +25,39 @@
   },
   "private": true,
   "dependencies": {
-    "@angular/animations": "^9.1.7",
-    "@angular/common": "^9.1.7",
-    "@angular/compiler": "^9.1.7",
-    "@angular/core": "^9.1.7",
-    "@angular/forms": "^9.1.7",
-    "@angular/platform-browser": "^9.1.7",
-    "@angular/platform-browser-dynamic": "^9.1.7",
-    "@angular/router": "^9.1.7",
-    "rxjs": "^6.5.5",
-    "tslib": "^1.11.2",
+    "@angular/animations": "^10.0.2",
+    "@angular/common": "^10.0.2",
+    "@angular/compiler": "^10.0.2",
+    "@angular/core": "^10.0.2",
+    "@angular/forms": "^10.0.2",
+    "@angular/platform-browser": "^10.0.2",
+    "@angular/platform-browser-dynamic": "^10.0.2",
+    "@angular/router": "^10.0.2",
+    "rxjs": "^6.6.0",
+    "tslib": "^2.0.0",
     "zone.js": "^0.10.3"
   },
   "devDependencies": {
-    "@angular-devkit/build-angular": "^0.901.6",
-    "@angular-devkit/build-ng-packagr": "^0.901.6",
-    "@angular/cli": "^9.1.6",
-    "@angular/compiler-cli": "^9.1.7",
-    "@angular/language-service": "^9.1.7",
-    "@types/jasmine": "^3.5.10",
+    "@angular-devkit/build-angular": "^0.1000.1",
+    "@angular-devkit/build-ng-packagr": "^0.1000.1",
+    "@angular/cli": "^10.0.1",
+    "@angular/compiler-cli": "^10.0.2",
+    "@angular/language-service": "^10.0.2",
+    "@types/jasmine": "^3.5.11",
     "@types/jasminewd2": "~2.0.8",
-    "@types/node": "^14.0.3",
-    "codelyzer": "^5.2.2",
+    "@types/node": "^14.0.14",
+    "codelyzer": "^6.0.0",
     "jasmine-core": "~3.5.0",
     "jasmine-spec-reporter": "~5.0.2",
-    "karma": "~5.0.8",
+    "karma": "~5.1.0",
     "karma-chrome-launcher": "~3.1.0",
-    "karma-coverage-istanbul-reporter": "~3.0.2",
-    "karma-jasmine": "~3.1.1",
+    "karma-coverage-istanbul-reporter": "~3.0.3",
+    "karma-jasmine": "~3.3.1",
     "karma-jasmine-html-reporter": "^1.5.4",
-    "ng-packagr": "^9.1.5",
+    "ng-packagr": "^10.0.0",
     "protractor": "~7.0.0",
-    "ts-node": "^8.10.1",
+    "ts-node": "^8.10.2",
     "tslint": "^6.1.2",
-    "typescript": "^3.8.3"
+    "typescript": "^3.9.6"
   }
 }

packages/pipes/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@nglrx/pipes",
-  "version": "0.1.8",
+  "version": "0.1.9",
   "author": "Kapil Neurgaonkar",
   "description": "A collection of Angular pipes",
   "license": "MIT",
@@ -16,6 +16,6 @@
     "library"
   ],
   "peerDependencies": {
-    "@angular/core": "^4.0.0 || ^5.0.0 || ^6.0.0 || ^7.0.0 || ^8.0.0 || ^9.0.0"
+    "@angular/core": "^4.0.0 || ^5.0.0 || ^6.0.0 || ^7.0.0 || ^8.0.0 || ^9.0.0 || ^10.0.0"
   }
 }

packages/pipes/src/lib/index.ts

@@ -23,3 +23,4 @@ export { UpperCasePipe } from './string/upper-case/upper-case.pipe';
 export { NglrxNumberPipesModule } from './number/nglrx-number-pipes.module';
 export { MaxPipe } from './number/max/max.pipe';
 export { MinPipe } from './number/min/min.pipe';
+export { SumPipe } from './number/sum/sum.pipe';

packages/pipes/src/lib/number/max/max.pipe.spec.ts

@@ -20,23 +20,23 @@ describe('MaxPipe', () => {
   });
 
   it(`should find maximum from an array of numbers`, () => {
-    expect(pipe.transform(...arr)).toEqual(maxOfArr);
+    expect(pipe.transform(arr)).toEqual(maxOfArr);
   });
 
   it(`should find maximum from an array of both positive and negative numbers`, () => {
-    expect(pipe.transform(...mixedArr)).toEqual(maxOfMixedArr);
+    expect(pipe.transform(mixedArr)).toEqual(maxOfMixedArr);
   });
 
   it(`should find maximum from an array with single value`, () => {
-    expect(pipe.transform(...singleValueArr)).toEqual(maxOfSingleValueArr);
+    expect(pipe.transform(singleValueArr)).toEqual(maxOfSingleValueArr);
   });
 
   it(`should return null for an empty array`, () => {
-    expect(pipe.transform(...emptyArr)).toBeNull();
+    expect(pipe.transform(emptyArr)).toBeNull();
   });
 
   it(`should be null safe`, () => {
-    expect(pipe.transform()).toBeNull();
+    expect(pipe.transform(null)).toBeNull();
   });
 
 });

packages/pipes/src/lib/number/min/min.pipe.spec.ts

@@ -20,23 +20,23 @@ describe('MinPipe', () => {
   });
 
   it(`should find minimum from an array of numbers`, () => {
-    expect(pipe.transform(...arr)).toEqual(minOfArr);
+    expect(pipe.transform(arr)).toEqual(minOfArr);
   });
 
   it(`should find minimum from an array of both positive and negative numbers`, () => {
-    expect(pipe.transform(...mixedArr)).toEqual(minOfMixedArr);
+    expect(pipe.transform(mixedArr)).toEqual(minOfMixedArr);
   });
 
   it(`should find minimum from an array with single value`, () => {
-    expect(pipe.transform(...singleValueArr)).toEqual(minOfSingleValueArr);
+    expect(pipe.transform(singleValueArr)).toEqual(minOfSingleValueArr);
   });
 
   it(`should return null for an empty array`, () => {
-    expect(pipe.transform(...emptyArr)).toBeNull();
+    expect(pipe.transform(emptyArr)).toBeNull();
   });
 
   it(`should be null safe`, () => {
-    expect(pipe.transform()).toBeNull();
+    expect(pipe.transform(null)).toBeNull();
   });
 
 });

packages/pipes/src/lib/number/nglrx-number-pipes.module.ts

@@ -2,10 +2,12 @@ import { NgModule } from '@angular/core';
 
 import { MaxPipe } from './max/max.pipe';
 import { MinPipe } from './min/min.pipe';
+import { SumPipe } from './sum/sum.pipe';
 
 const NUMBER_PIPES = [
   MaxPipe,
   MinPipe,
+  SumPipe,
 ];
 
 @NgModule({

packages/pipes/src/lib/number/sum/sum.pipe.spec.ts

@@ -0,0 +1,42 @@
+import { SumPipe } from './sum.pipe';
+
+describe('SumPipe', () => {
+  let pipe: SumPipe;
+
+  const arr = [10, 45, 200, 5, 92];
+  const sumOfArr = 352;
+  const mixedArr = [30, 0, -99, -52, -9];
+  const sumOfMixedArr = -130;
+  const singleValueArr = [2];
+  const sumOfSingleValueArr = 2
+  const emptyArr = [];
+
+  beforeEach(() => {
+    pipe = new SumPipe();
+  });
+
+  it('should create an instance', () => {
+    expect(pipe).toBeTruthy();
+  });
+
+  it(`should find sum from an array of numbers`, () => {
+    expect(pipe.transform(arr)).toEqual(sumOfArr);
+  });
+
+  it(`should find sum from an array of both positive and negative numbers`, () => {
+    expect(pipe.transform(mixedArr)).toEqual(sumOfMixedArr);
+  });
+
+  it(`should find sum from an array with single value`, () => {
+    expect(pipe.transform(singleValueArr)).toEqual(sumOfSingleValueArr);
+  });
+
+  it(`should return null for an empty array`, () => {
+    expect(pipe.transform(emptyArr)).toBeNull();
+  });
+
+  it(`should be null safe`, () => {
+    expect(pipe.transform(null)).toBeNull();
+  });
+
+});

packages/pipes/src/lib/number/sum/sum.pipe.ts

@@ -0,0 +1,12 @@
+import { Pipe, PipeTransform } from '@angular/core';
+
+@Pipe({
+  name: 'sum'
+})
+export class SumPipe implements PipeTransform {
+
+  transform(values: number[]): number {
+    return values && values.length > 0 ? values.reduce((sum, value) => sum + value, 0) : null;
+  }
+
+}

tsconfig.json

@@ -9,7 +9,7 @@
     "experimentalDecorators": true,
     "module": "esnext",
     "moduleResolution": "node",
-    "importHelpers": true,
+    "importHelpers": false,
     "target": "es2015",
     "typeRoots": [
       "node_modules/@types"