typescript-string-operations

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
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.