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JavaScript - remove first n characters from string

17 points
Created by:
Mariam-Barron
571

In JavaScript it is possible to remove the first n characters from the string in the following way.

1. Using String slice() method

// ONLINE-RUNNER:browser;

// remove first n characters from string
function removeFirstChars(text, n) {
    return text.slice(n);
}

console.log( removeFirstChars('12345', 0) ); // 12345
console.log( removeFirstChars('12345', 1) ); // 2345
console.log( removeFirstChars('12345', 2) ); // 345
console.log( removeFirstChars('12345', 3) ); // 34
console.log( removeFirstChars('12345', 4) ); // 5

// below results are empty, that's why we compare them to ''
console.log( removeFirstChars('12345', 5) === '' ); // true

Note:
We can achieve the same results using:

  • String substring() method
  • String replace() method

Alternative titles

  1. JavaScript - remove first n characters from string - js util
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