chroma-js/src/ops/get.js

JavaScript library for color conversions

const Color = require('../Color');

Color.prototype.get = function(mc) {
    const [mode,channel] = mc.split('.');
    const src = this[mode]();
    if (channel) {
        const i = mode.indexOf(channel);
        if (i > -1) return src[i];
        throw new Error(`unknown channel ${channel} in mode ${mode}`);
    } else {
        return src;
    }
}