JavaScript - Delete First Character of a String

To delete the first character of a string in JavaScript, you can use several methods. Here are some of the most common ones

Using slice()

The slice() method is frequently used to remove the first character by returning a new string from index 1 to the end.

let s1 = "GeeksforGeeks";
let s2 = s1.slice(1);
console.log(s2);

Output

eeksforGeeks

Using substring()

Similar to slice(), substring() creates a new string starting from index 1, effectively removing the first character.

let str = "GeeksforGeeks";
let newStr = str.substring(1);
console.log(newStr); 

Output

eeksforGeeks

Using Array Destructuring with join()

Convert the string into an array of characters, remove the first character, and join it back into a string.

let s1 = "GeeksforGeeks";
let s2 = [...s1].slice(1).join('');
console.log(s2);

Output

eeksforGeeks

Using replace() with Regular Expression

The replace() method removes the first character using a regular expression that matches the first character (^.).

let s1 = "GeeksforGeeks";
let s2 = s1.replace(/^./, '');
console.log(s2);

Output

eeksforGeeks

Note: In most cases, slice() and substring() are preferred for their simplicity and readability.