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string.prototype.trimstart

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string.prototype.trimstart

ES2019 spec-compliant String.prototype.trimStart shim.


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Package description

What is string.prototype.trimstart?

The string.prototype.trimstart package provides functionality to remove whitespace from the beginning of a string without altering the rest of the string. This is particularly useful for cleaning up user input, formatting strings before processing, or simply ensuring consistency in string data.

What are string.prototype.trimstart's main functionalities?

Trimming start of a string

This feature allows you to remove all whitespace from the beginning of a string. The example code demonstrates how to use the trimStart method to remove leading spaces from a string, resulting in 'Hello world!' without the leading spaces.

"   Hello world!".trimStart()

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An ES2019-spec-compliant String.prototype.trimStart shim. Invoke its "shim" method to shim String.prototype.trimStart if it is unavailable.

This package implements the es-shim API interface. It works in an ES3-supported environment and complies with the spec. In an ES6 environment, it will also work properly with Symbols.

Most common usage:

var trimStart = require('string.prototype.trimstart');

assert(trimStart(' \t\na \t\n') === 'a \t\n');

if (!String.prototype.trimStart) {
	trimStart.shim();
}

assert(trimStart(' \t\na \t\n') === ' \t\na \t\n'.trimStart());

Tests

Simply clone the repo, npm install, and run npm test

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Package last updated on 21 Mar 2024

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