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Javascript 2021-11-18 04:33:23
check before element jquery
.before( content [, content ] ) content Type: htmlString or Element or Text or Array or jQuery HTML string, DOM element, text node, array of elements and text nodes, or jQuery object to insert before each element in the set of matched elements. content Ty... Add solution -
Javascript 2021-11-14 00:15:23
cache variables that need calculation
// In the case of a jQuery selector, we could cache the DOM element. let navright = document.querySelector('#right'); let navleft = document.querySelector('#left'); let navup = document.querySelector('#up'); let navdown = document.querySelector('#down'); Add solution -
Javascript 2021-11-13 15:06:11
simple redux implementation
// simplified createStore function const createStore = (yourReducer) => { let listeners = []; let currentState = yourReducer(undefined, {}); return { getState: () => currentState, dispatch: (action) => { currentState = yourRe... Add solution -
Javascript 2021-11-07 17:10:13
javascript check if element is visible on screen
// Where el is the DOM element you'd like to test for visibility <script> function isHidden(el) { return (el.offsetParent === null); } var el = document.getElementById('el'); alert(isHidden(el)); </script> // if true then element &... Add solution -
Javascript 2021-11-06 07:01:12
jquery wrap
The .wrap() function can take any string or object that could be passed to the $() factory function to specify a DOM structure. This structure may be nested several levels deep, but should contain only one inmost element. A copy of this structure will be ... Add solution -
Javascript 2021-11-05 03:23:10
Manually Parsing HTML in Node.js
/* This code comes from Vincent Lab And it has a video version linked here: https://www.youtube.com/watch?v=PozG7Sva270 */ // Import dependencies const fs = require("fs"); const cheerio = require("cheerio"); const cheerioTable... Add solution -
Html 2021-11-04 12:54:08
pros/cons of using `.createElement()` and `append()` vs. `.innerHTML`?
Preserves existing references to DOM elements when appending elements. When you append to (or otherwise modify) innerHTML , all the DOM nodes inside that element have to be re-parsed and recreated. Preserves event handlers attached to any DOM elements. C... Add solution