/typescript-string-operations

Simple lightweight string operation library for Typescript. No jQuery required! Unit tested, works with Angular.

Primary LanguageTypeScriptMIT LicenseMIT

NPM

Simple lightweight string operation library for Typescript.

No jQuery required! Unit tested, works with Angular.

 import { String, StringBuilder } 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 ");

// of course using String.Format()
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
Clear Method clears the StringBuilder
ToString Method creates the actual string.