highlight-es

Highlight ECMAScript syntax for the console or any other medium.

Install

npm install highlight-es

Usage

const highlight = require('highlight-es');

function testFunc () {
    const re    = /(.+) awesome$/;
    const match = 'You are awesome'.match(re);

    return match[1];
}

const code = testFunc.toString();

console.log('\n' + highlight(code));

⬇

You can pass custom renderer to target other medium, e.g.:

highlight(code, {
    string:     str => ...,
    punctuator: str => ...,
    keyword:    str => ...,
    number:     str => ...,
    regex:      str => ...,
    comment:    str => ...,
    invalid:    str => ...
});

Related

is-es2016-keyword - Determine if string is an ES2016 keyword.

Author

Ivan Nikulin ([email protected])