check if a class exists javascript
const element = document.querySelector("#box");
element.classList.contains("active");check if a class exists javascript
const element = document.querySelector("#box");
element.classList.contains("active");check if has name javascript
function whatIsInAName(collection, source) {
// "What's in a name? that which we call a rose
// By any other name would smell as sweet.”
// -- by William Shakespeare, Romeo and Juliet
var srcKeys = Object.keys(source);
return collection.filter(function(obj) {
return srcKeys.every(function(key) {
return obj.hasOwnProperty(key) && obj[key] === source[key];
});
});
}
// test here
whatIsInAName(
[
{ first: "Romeo", last: "Montague" },
{ first: "Mercutio", last: null },
{ first: "Tybalt", last: "Capulet" }
],
{ last: "Capulet" }
);Copyright © 2021 Codeinu
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