Mikhail Larchanka larchanka

CSS Layout Debugger

A tweet-sized debugger for visualizing your CSS layouts. Outlines every DOM element on your page a random (valid) CSS hex color.

One-line version to paste in your DevTools

Use $$ if your browser aliases it:

~ 108 byte version

	/**
	* Calculates the total size of all the items in local storage.
	* @returns {Number} The total size of all the items in local storage in bytes.
	*/
	function calculateLocalStorageSize() {
	return new Blob(Object.keys(localStorage).map(k => k + localStorage[k])).size;
	}

	/**
	* Calculates the ideal ramp length and height for a car jump based on the preference for a higher or longer jump.
	*
	* @param {'higher' \| 'longer'} preference - The preference for the jump, either "higher" or "longer".
	* @returns {{length: string, height: string}} - An object containing the scaled length and height of the ramp in meters.
	* @throws {Error} - Throws an error if the preference is not "higher" or "longer".
	*/
	function calculateRcRamp(preference) {
	const g = 9.81;
	const scale = 1;

	export default (itemName, defaultValue, postFn = (str) => str) => {
	const item = localStorage.getItem(itemName);

	if (item) {
	return postFn(item);
	}

	return defaultValue;
	};

	function randomIntFromInterval(min, max) { // min and max included
	return Math.floor(Math.random() * (max - min + 1) + min);
	}

	const contentHashGenerator = (str = '') => {
	let hash = 0;
	let i;
	let chr;
	if (str.length === 0) return hash;
	for (i = 0; i < str.length; i++) {
	chr = str.charCodeAt(i);
	// eslint-disable-next-line
	hash = ((hash << 5) - hash) + chr;
	// eslint-disable-next-line

	var getQueryParam = function getQueryParam (param) {
	var queries = window.location.search, regex, resRegex, results, response;
	param = encodeURIComponent(param);
	regex = new RegExp('[\\?&]' + param + '=([^&#]*)', 'g');
	resRegex = new RegExp('(.)=([^&#])');
	results = queries.match(regex);

	if (!results) {
	return '';
	}