JavaScript – How to remove certain element from Array
In JavaScript, we can combine indexOf()
and splice()
to remove a certain element from an Array.
var array = [1, 2, 3, 4, 5];
console.log(array)
// I want remove num 4, find the index first, -1 if it is not present.
var index = array.indexOf(4);
if (index > -1) { // found
array.splice(index, 1);
}
// array = [1, 2, 3, 5];
console.log(array);
var lang = ['java', 'node js', 'javascript', 'pyhton'];
console.log(lang)
// I want remove node js
var index = lang.indexOf(`node js`);
if (index > -1) {
lang.splice(index, 1);
}
//lang = ['java', 'javascript', 'pyhton'];
console.log(lang);
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