jyoo

import React, { useState, useEffect } from "react";

/*
 * Check whether a page is visible to a user. 
 * Return true if it is visible to the user. Return false otherwise.
 */
function usePageVisibility() {
  const [isVisible, setIsVisible] = useState(getIsDocumentHidden());
  const onVisibilityChange = () => setIsVisible(getIsDocumentHidden());

jyoo

def slugify(words):
    # https://gist.github.com/hagemann/382adfc57adbd5af078dc93feef01fe1
    # NOTE: This is inspired by @hagemann's awesome Javascript function for making a URL slug.
    
    a = 'àáâäæãåāăąçćčđďèéêëēėęěğǵḧîïíīįìłḿñńǹňôöòóœøōõőṕŕřßśšşșťțûüùúūǘůűųẃẍÿýžźż·/_,:;'
    b = 'aaaaaaaaaacccddeeeeeeeegghiiiiiilmnnnnoooooooooprrsssssttuuuuuuuuuwxyyzzz------'
    p = "|".join(list(a))
  
    regex = re.compile(p)
    slugified_words = words.lower()