TypeScript String padStart() method
Last Updated :
27 Feb, 2024
The padStart() function, in TypeScript, serves as the opposite of padEnd() and allows you the add characters at the start of a string which is particularly used to format text or for aligning numbers.
Syntax:
string.padStart(targetLength: number, padString?: string): string
Parameters:
- targetLength: Here you have to pass the length you want the final string to be, after adding padding.
- padString (Optional): The characters used for padding. Defaults, to spaces (‘ ‘) if not specified.
Return Value:
Returns a new string of the specified targetLength with the padString applied at the left side(i.e. beginning) of the current string.
Example 1: To demonstrate the use of padding with spaces (Default).
Javascript
let originalString: string = "Hello" ;
let paddedString: string = originalString
.padStart(10);
console.log(paddedString);
|
Output:
Hello
Example 2: To demonstrate the use of padding with Zeros.
Javascript
let numberString: string = "123" ;
let paddedNumber: string = numberString
.padStart(5, "0" );
console.log(paddedNumber);
|
Output:
00123
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