Jak odstranit konkrétní položku z pole v JavaScriptu
Příklady kódu
odstranění konkrétní prvek z pole
var colors = ["red","blue","car","green"];
var carIndex = colors.indexOf("car");//get "car" index
//remove car from the colors array
colors.splice(carIndex, 1); // colors = ["red","blue","green"]odebrat konkrétní prvek z pole
var colors = ["red","blue","car","green"];
var carIndex = colors.indexOf("car");//get "car" index
//remove car from the colors array
colors.splice(carIndex, 1); // colors = ["red","blue","green"]js odstranit z pole podle hodnoty
const index = array.indexOf(item);
if (index !== -1) array.splice(index, 1);js odebrat z pole podle hodnoty
const index = array.indexOf(item);
if (index !== -1) array.splice(index, 1);Jak mohu odstranit konkrétní položku z pole
const array = [2, 5, 9];
console.log(array);
const index = array.indexOf(5);
if (index > -1) {
array.splice(index, 1);
}
// array = [2, 9]
console.log(array); js pole odstranit konkrétní prvek
var ar = [1, 2, 3, 4, 5, 6];
ar.length = 4; // set length to remove elements
console.log( ar ); // [1, 2, 3, 4]Související stránky
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