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@babel/helper-validator-identifier

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@babel/helper-validator-identifier

Validate identifier/keywords name


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43M
decreased by-16.26%
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Package description

What is @babel/helper-validator-identifier?

The @babel/helper-validator-identifier npm package is a utility library used by Babel to validate string identifiers according to the ECMAScript specification. It provides functions to determine if a string is a valid identifier name, which is useful when manipulating code in a way that needs to adhere to JavaScript naming conventions.

What are @babel/helper-validator-identifier's main functionalities?

isValidIdentifier

Checks if a string is a valid ECMAScript identifier name.

const isValid = require('@babel/helper-validator-identifier').isValidIdentifier;
console.log(isValid('validName')); // true
console.log(isValid('123invalid')); // false

isIdentifierStart

Checks if a character code can start an ECMAScript identifier.

const isIdentifierStart = require('@babel/helper-validator-identifier').isIdentifierStart;
console.log(isIdentifierStart('v'.charCodeAt(0))); // true
console.log(isIdentifierStart('1'.charCodeAt(0))); // false

isIdentifierChar

Checks if a character code can be part of an ECMAScript identifier.

const isIdentifierChar = require('@babel/helper-validator-identifier').isIdentifierChar;
console.log(isIdentifierChar('n'.charCodeAt(0))); // true
console.log(isIdentifierChar('!'.charCodeAt(0))); // false

Other packages similar to @babel/helper-validator-identifier

Changelog

Source

v7.24.7 (2024-06-05)

:bug: Bug Fix
  • babel-node
    • #16554 Allow extra flags in babel-node (@nicolo-ribaudo)
  • babel-traverse
  • babel-helper-transform-fixture-test-runner, babel-plugin-proposal-explicit-resource-management
:house: Internal
  • babel-helpers, babel-runtime-corejs2, babel-runtime-corejs3, babel-runtime

Readme

Source

@babel/helper-validator-identifier

Validate identifier/keywords name

See our website @babel/helper-validator-identifier for more information.

Install

Using npm:

npm install --save @babel/helper-validator-identifier

or using yarn:

yarn add @babel/helper-validator-identifier

FAQs

Package last updated on 05 Jun 2024

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