@putout/operator-keyword

🐊Putout operator adds ability to check whether Identifier is a keyword or not.

Install

npm i putout @putout/operator-keyword

API

import {operator} from 'putout';

const {
    isKeyword,
    isTSKeyword,
    isDeclarationKeyword,
    isModuleDeclarationKeyword,
    isConditionKeyword,
} = operator;

isKeyword('if');
// returns
true;

isKeyword('abc');
// returns
false;

isDeclarationKeyword('const');
// returns
true;

isModuleDeclarationKeyword('import');
// returns
true;

isConditionKeyword('if');
// returns
true;

isStatementKeyword('for');
// returns
true;

isTSKeyword('implements');
// returns
true;

isLegacyKeyword

A previous version of import attributes used the assert keyword instead of with. The assertion feature is now non-standard.

(c) MDN

import {operator} from 'putout';

const {isLegacyKeyword} = operator;

isLegacyKeyword('assert');
// returns
true;

License

MIT