JavaScript String trimStart() and trimLeft() Method (original) (raw)

Last Updated : 18 Jul, 2023

This article demonstrates **trimEnd and **trimRight methods of JavaScript string. Both methods are used to perform the same task and their implementation is shown below:

JavaScript trimStart() method:

The **trimStart() method in JavaScript is used to remove whitespace from the beginning of a string. The value of the string is not modified in any manner, including any whitespace present after the string.

**Syntax:

string.trimStart();

**Return Value:

It returns the final string that is stripped out of all the white space in the beginning.

**Example: This example implements the **trimStart() method.

JavaScript `

// Function to implement trimStart method function trimString() {

// Input strings
str1 = " GeeksforGeeks     ";
str2 = "Hello There! ";

// Implementation of trimStart method
trimmed_out = str1.trimStart();
trimmed_out2 = str2.trimStart();

// Display output
console.log('"' + trimmed_out + '"');
console.log('"' + trimmed_out2 + '"');

}

// Function call trimString()

`

Output

"GeeksforGeeks " "Hello There! "

JavaScript trimLeft() method:

The **trimStart() method has an alias which is the **trimLeft() method. It performs exactly the same function as the trimStart() method.

**Syntax:

string.trimLeft();

**Return Value:

It returns the final string that is stripped out of all the white space in the beginning.

**Example: This example implements the trimLeft() method.

JavaScript `

// Function to implement trimLeft method function trimString() {

// Input strings
str1 = " GeeksforGeeks     ";
str2 = "Portal ";

// Implementation of trimLeft method
trimmed_out = str1.trimLeft();
trimmed_out2 = str2.trimLeft();

// Display output
console.log('"'
    + trimmed_out + '"');
console.log('"'
    + trimmed_out2 + '"');

}

// Function call trimString()

`

Output

"GeeksforGeeks " "Portal "

We have a complete list of Javascript Strings, to check those please go through the Javascript String Complete reference article.

**Supported Browsers: The browsers supported by _trimStart() method are listed below: