ngx-string-helper

Angular 2+ String Helper

Ngx lacks complete string manipulation operations. This is an attempt to fill that gap.

Installation

Install via npm

$ npm i ngx-string-helper --save

API Usage

        To use it in your Angular 2 app import the module in your root module(app.module.ts) as shown below.

        import { NgxStrHelperModule } from 'ngx-string-helper';
        ...
        ...
        @NgModule({

        imports:[
                NgxStrHelperModule
        ],

        })

        In your components simply import the service.

        import { NgxStrHelper } from 'ngx-string-helper';
        ...
        ...
        export class YOUR_MODULE {

                constructor(private ngxStrHelper: NgxStrHelper) {

                }

        }

NgxStrHelper.isNullOrEmpty();

        let sampleString = "Input is a string";
        let isNullOrEmpty = ngxStrHelper.isNullOrEmpty(sampleString);
        // => Outputs: True

NgxStrHelper.isBlank();

        isBlank(""); // => Outputs: true
        isBlank("\n"); // => Outputs: true
        isBlank(" "); // => Outputs: true
        isBlank("a"); // => Outputs: false

NgxStrHelper.contains();

        //returns true
        if (ngxStrHelper.contains('Input is a string', 'is')) {
            //Do something awesome here..
        }

NgxStrHelper.truncate();

        var sampleString = "Input is a string";
        var str = ngxStrHelper.truncate(sampleString, 9);
        // => Outputs: Input is a string ...

NgxStrHelper.toSlug();

        var sampleString = "Input is a string";
        var slug = ngxStrHelper.toSlug(sampleString);
        // => Outputs: input-is-a-string

NgxStrHelper.decapitalize();

Converts first letter of the string to lowercase.

        ngxStrHelper.decapitalize("Foo Bar");
        // => Outputs: "foo Bar"

NgxStrHelper.capitalize();

Converts first letter of the string to uppercase. If true is passed as second argument the rest of the string will be converted to lower case.

        ngxStrHelper.capitalize("foo Bar");
        // => Outputs: "Foo Bar"

        ngxStrHelper.capitalize("FOO Bar", true);
        // => Outputs: "Foo bar"

NgxStrHelper.clean();

Trim and replace multiple spaces with a single space.

        ngxStrHelper.clean(" foo    bar   ");
        // => Outputs: "foo bar"

NgxStrHelper.chars();

        ngxStrHelper.chars("Hello");
        // => Outputs: ["H", "e", "l", "l", "o"]

NgxStrHelper.swapCase();

Returns a copy of the string in which all the case-based characters have had their case swapped.

        ngxStrHelper.swapCase("hELLO");
        // => Outputs: "Hello"

NgxStrHelper.include();

Tests if string contains a substring.

        ngxStrHelper.include("foobar", "ob");
        // => Outputs: true

NgxStrHelper.count();

Returns number of occurrences of substring in string.

        ngxStrHelper.count("Hello world", "l");
        // => Outputs: 3

NgxStrHelper.escapeHTML();

Converts HTML special characters to their entity equivalents. This function supports cent, yen, euro, pound, lt, gt, copy, reg, quote, amp, apos.

        ngxStrHelper.escapeHTML("<div>Blah blah blah</div>");
        // => Outputs: "&lt;div&gt;Blah blah blah&lt;/div&gt;"

NgxStrHelper.unescapeHTML();

Converts entity characters to HTML equivalents. This function supports cent, yen, euro, pound, lt, gt, copy, reg, quote, amp, apos, nbsp.

        ngxStrHelper.unescapeHTML("<div>Blah blah blah</div>");
        // => Outputs: "<div>Blah blah blah</div>"

NgxStrHelper.insert();

        ngxStrHelper.insert("Hellworld", 4, "o ");
        // => Outputs: "Hello world"

NgxStrHelper.replaceAll();

        ngxStrHelper.replaceAll("foo", "o", "a");
        // => Outputs: "faa"

NgxStrHelper.reverse();

Return reversed string

        ngxStrHelper.reverse("foobar");
        // => Outputs: "raboof"

NgxStrHelper.startsWith();

This method checks whether the string begins with starts at position (default: 0)

        ngxStrHelper.startsWith("image.gif", "image");
        // => Outputs: true
        ngxStrHelper.startsWith(".vimrc", "vim", 1);
        // => Outputs: true

NgxStrHelper.endsWith();

This method checks whether the string ends with ends at position (default: string.length).

        ngxStrHelper.endsWith("image.gif", "gif");
        // => Outputs: true
        ngxStrHelper.("image.old.gif", "old", 9);
        // => Outputs: true

Thanks and enjoy!