Js-utility-functions NPM

Javascript Utility functions

Example

$ npm install js-utility-functions --save

Available functions

Title Case a string
Convert String to an Array Optional Remove Spaces
Count Instance in an array
Sum of an Array Optional Add Initial Value
Validate Name
Validate Mobile number
Validate email
Validate Option

// ES 2015
import { titleCaseString } from 'js-utility-functions';

const formattedText = titleCaseString('hello world');

console.log(formattedText);

// Output: Hello World

import { convertStringToArray } from 'js-utility-functions';

let x = convertStringToArray('hello');

Note: Second argument to convertStringToArray is optional for removing spaces default: false

console.log(x);

// Output : ['h', 'e', 'l', 'l', 'o']

* Extra Remove Spaces

let y = convertStringToArray('hello world', true); // if passed true then it removes spaces

console.log(y);

// Output : ['h', 'e', 'l', 'l', 'o', 'w', 'o', 'r', 'l', 'd']

import { countInstanceInArray } from 'js-utility-functions';

let data = ['rama', 'dan', 'wes', 'rama', 'dan', 'wes', 'cooper', 'mark'];

let x = countInstanceInArray(data); // this will count no of times each element in array is repeated

console.log(x);

// Output : {rama: 2, dan: 2, wes: 2, cooper: 1, mark: 1}

import { sumOfAnArray } from 'js-utility-functions';

let data = [1, 2, 3, 4, 5, 6];

let x = sumOfAnArray(data); // this will add up all elements in an array and returns sumOfAnArray

// Second argument is optional and default is 0 .

console.log(x);

// Output : 21

* Extra Add Intial Value

// if you want to add up some initial value you can do so by passing second argument value

let x = sumOfAnArray(data, 10);

console.log(x);

// Output : 31

import { validateName } from 'js-utility-functions';

let x = validateName("ra", "Enter Valid Name", 3);
// First argument is value
// Second argument is your custom error message
// Third argument is length of the value you want to validate (optional)
console.log(x);

// Output : {error: true, errorMessage: 'Enter Valid Name'}


import { validateMobile } from 'js-utility-functions';

let x = validateMobile(9999999999, 'Enter Valid Mobile Number');

//validate 10 digit mobile number

console.log(x);

// Output : {error: false, errorMessage: ''}


import { validateEmail } from 'js-utility-functions';

let x = validateMobile('rama.ped', 'Enter Valid Email ID');

//validate 10 digit mobile number

console.log(x);

// Output : {error: true, errorMessage: 'Enter Valid Email ID'}


import { validateOption } from 'js-utility-functions';

let x = validateOption('option', 'Select Valid Option');

//validate an option select

console.log(x);

// Output : {error: false, errorMessage: ''}


For All Validation functions return following object

  Error Case:

  {error: true, errorMessage: 'Your custom message that is passed'}

  No Error Case:

  {error: false, errorMessage: ''}