nblackburn

module.exports = (red, green, blue) => {
    const rs = red / 255;
    const gs = green / 255;
    const bs = blue / 255;

    const rn = rs <= 0.03928 ? rs / 12.92 : Math.pow((rs + 0.055) / 1.055, 2.4);
    const gn = gs <= 0.03928 ? gs / 12.92 : Math.pow((gs + 0.055) / 1.055, 2.4);
    const bn = bs <= 0.03928 ? bs / 12.92 : Math.pow((bs + 0.055) / 1.055, 2.4);

    return (0.2126 * rn) + (0.7152 * gn) + (0.0722 * bn);

nblackburn

module.exports = hex => {
    if (hex.charAt(0) === '#') {
        hex = hex.substring(1);
    }

    if (hex.length !== 3 && hex.length !== 6) {
        return false;
    }

    if (hex.length === 3) {

nblackburn

module.exports = (red, green, blue, preferShorthand = false) => {
    let colours = [red, green, blue].map(value => value.toString(16));
    let canBeCondensed = colours.every(value => value.charAt(0) === value.charAt(1));

    if (canBeCondensed && preferShorthand) {
        colours = colours.map(v => v.charAt(0));
    }
    
    return '#' + colours.join('');
};

nblackburn

let events = [];
let timeout = null;
let interval = 100;

const getScheduled = () => {
    let now = Date.now();

    return events.filter(event => {
        return (event.lastInvoked + event.interval) < now;
    });

nblackburn

module.exports = weights => {
    let seed = Math.random() * weights.length;
    
    return weights.find(weight => (seed - weight) <= 0);
};

nblackburn

module.exports = (query, result, insensitive) => {
    let index = 0;
    let last = 0;
    let matched = false;

    // Normalize the strings we are comparing to each other.
    if (insensitive) {
        query = query.toLowerCase();
        result = result.toLowerCase();
    }

nblackburn

module.exports = (node, callback) => {
	if (node.childNodes) {
		for (let index = 0; index < node.childNodes.length; index++) {
			const child = node.childNodes[index]
			const next = callback(child)

			if (!next) {
				walk(child, callback)
			}
		}

nblackburn

input::-webkit-input-placeholder {
    color: #666666;
}

input :-moz-placeholder {
    color: #666666;
}

input::-moz-placeholder {
    color: #666666;

nblackburn

module.exports = (string) => {
    return string.replace(/([a-z0-9]|(?=[A-Z]))([A-Z])/g, '$1-$2').toLowerCase();
};

nblackburn

module.exports = (test, pattern) => {
    return new RegExp(test.replace(/\*/g, '([^*]+)'), 'g').test(pattern);
};