Package Exports

typescript-string-operations
typescript-string-operations/dist/index.min.js

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Readme

npm npm

Simple lightweight string operation library for Typescript.

No jQuery required! Unit tested, works with Angular.

 import { String, StringBuilder } from 'typescript-string-operations';

I recently got feedback that sometimes there are issues when using String, since its actually replacing the native String object from JavaScript. You can use $String instead.

 import { $String } from 'typescript-string-operations';

USAGE:

String.empty

var id = String.empty;

String.isNullOrWhiteSpace():

var id = image.GetId();
if(String.isNullOrWhiteSpace(id))
    return image;

String.format():

var id = image.GetId()
String.format("image_{0}.jpg", id)
output: "image_2db5da20-1c5d-4f1a-8fd4-b41e34c8c5b5.jpg";

Specifier available!

var value = String.format("{0:L}", "APPLE"); //output "apple"

value = String.format("{0:U}", "apple"); // output "APPLE"

value = String.format("{0:d}", "2017-01-23 00:00"); //output "23.01.2017"

value = String.format("{0:s}", "21.03.2017 22:15:01") //output "2017-03-21T22:15:01"

value = String.format("{0:n}", 1000000);
//output "1.000.000"

value = String.format("{0:00}", 1);
//output "01"

UPDATE

String.format for Objects including specifiers

var fruit = new Fruit();
fruit.type = "apple";
fruit.color = "RED";
fruit.shippingDate = new Date(2018, 1, 1);
fruit.amount = 10000;

String.format("the {type:U} is {color:L} shipped on {shippingDate:s} with an amount of {amount:n}", fruit);
// output: the APPLE is red shipped on 2018-01-01 with an amount of 10.000

Specifier	Result
`L`	LowerCase
`U`	UpperCase
`d`	ShortDatePattern
`s`	SortableDateTimePattern
`n`	Thousand seperator
`00`	Padding numbers

String.Join():

var value = String.join("; ", "Apple", "Banana");
//output: "Apple; Banana";

OR

 let object = { Name: "Foo", Value: "Bar" };
 var value = String.join('.', object);
//output: "Foo.Bar";

var array = ['Apple', 'Banana']
var value = String.join("; ", array);
//output: "Apple; Banana";

Methods

Method	Type	Description	Parameter
`empty`	`Property`	simply returns `""`.
`isNullOrWhiteSpace`	`Method`	returns true value if given parameter is either null, empty or undefined.	`format`, `args`
`format`	`Method`	Converts the value of objects to strings based on the formats specified and inserts them into another string.	`format`, `args`
`join`	`Method`	Combines arguments delimited by given seperator.	`delimiter`,`args`
`join`	`Method`	Combines arguments delimited by given seperator from array.	`delimiter`,`array`

StringBuilder

Just like you know from C#,

var favoriteFruit: string = this.fruitService.getFavorite(); //Blueberries

var builder = new StringBuilder("My favorite fruits are: ");
builder.Append("Apples, ");
builder.Append("Bananas ");

// using String.Format() internally
builder.AppendFormat("and especially {0:U}!", favoriteFruit);
builder.AppendFormat(" I eat {0} every day!", 10);

var fruits = builder.ToString();

//output: "My favorite fruits are: Apples, Bananas and especially BLUEBERRIES! I eat 10 every day!";

Methods

Method	Type	Description	Parameter
`Append`	`Method`	appends a string.	`value`
`AppendFormat`	`Method`	see description for `String.format()`	`format`, `args`
`AppendLine`	`Method`	appends a string in a new line.	`format`, `args`
`AppendLineFormat`	`Method`	like `String.format()` in a new line	`format`, `args`
`Clear`	`Method`	clears the `StringBuilder`
`ToString`	`Method`	creates the actual string.