geraldfullam

import React from 'react'

export function isComponentWithName (el, name) {
  if (typeof name === 'string') {
    return React.isValidElement(el) && name === getDisplayName(el)
  }
  const validRegEx = name instanceof RegExp ? name : new RegExp(name)
  return React.isValidElement(el) && validRegEx.test(getDisplayName(el))
}

geraldfullam

jQuery plugin: .deepest()

Get the deepest descendants matching an optional selector of each element in the set of matched elements.

A Pen by Gerald on CodePen.

License.

Installation

geraldfullam

function getRandomIndex(len) {
  return Math.floor(Math.random() * Math.floor(len));
}

function cycleArray(arr, i) {
  return arr.slice(i).concat(arr.slice(0, i))
}

function cycleArrayByRandomIndex() {
  return cycleArray(arr, getRandomIndex(arr.length))

geraldfullam

Sort by, then by

My favorite sorting algorithm.

A Pen by Gerald Fullam on CodePen.

License.