The trim() method is used to remove extra spaces from a string. It helps clean user input by removing unwanted whitespace.

• Removes whitespace from both ends of the string.
• Returns a new trimmed string.
• The original string is not modified.

let text = "   Hello World   ";

let result = text.trim();

console.log(result);

Syntax

str.trim();

Parameters

This method does not accept any parameter.

Return value

Returns a new string without any of the leading or trailing white spaces. 

[Example 1]: Trimming Whitespace from the End of a String.

// String with trailing what spaces
let s = "GeeksforGeeks     ";

// trim() method to remove while spaces
let s1 = s.trim();

console.log(s1);

[Example 2]: Trimming Leading Whitespace from a String

// Original string with whitespace
let s = "   GeeksforGeeks";

// Trimmed string
let s1 = s.trim();

console.log(s1);

GeeksforGeeks

[Example 3]: Trimming Whitespace from both sides of String

// String with whitespace
let s = "   GeeksforGeeks    ";

// Trimmed string
let s1 = s.trim();

console.log(s1);