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JavaScript - String padEnd() method example

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Created by:

Leen-Kerr

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const text = 'A';
​
console.log(text.padEnd(1, '*')); // A
console.log(text.padEnd(2, '*')); // A*
console.log(text.padEnd(3, '*')); // A**

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1. Documentation

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Syntax	`String` `padEnd(maxLength)` `String` `padEnd(maxLength, padString)`
Parameters	`maxLength` - the length of the resulting string once the current string has been padded. `fillString` - The string to pad the current string with.
Result	A String of the specified `maxLength` with the `fillString` applied at the end of the current string.
Description	The method pads the current string with a given string (possibly repeated) so that the resulting string reaches a given length. The padding is applied from the end (right) of the current string.

2. Practical example

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In this example, we pad a number to keep only the first 3 digits.

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const number = '123456789';
const first3Digits = number.slice(6);
const maskedNumber = first3Digits.padEnd(number.length, '*');
​
console.log(maskedNumber);