javascript remove element from array
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"]javascript remove element from array
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"]javascript array remove
// - - - - - - - - - - -
// Remove Last Element (pop)
// - - - - - - - - - - -
// example (remove the last element in the array)
let yourArray = ["aaa", "bbb", "ccc", "ddd"];
yourArray.pop(); // yourArray = ["aaa", "bbb", "ccc"]
// syntax:
// <array-name>.pop();
// - - - - - - - - - - -
// Remove First Element (shift)
// - - - - - - - - - - -
// example (remove the last element in the array)
let yourArray = ["aaa", "bbb", "ccc", "ddd"];
yourArray.shift(); // yourArray = ["bbb", "ccc", "ddd"]
// syntax:
// <array-name>.shift();js remove element from array
function removeItemOnce(arr, value) {
var index = arr.indexOf(value);
if (index > -1) {
arr.splice(index, 1);
}
return arr;
}
function removeItemAll(arr, value) {
var i = 0;
while (i < arr.length) {
if (arr[i] === value) {
arr.splice(i, 1);
} else {
++i;
}
}
return arr;
}
// Usage
console.log(removeItemOnce([2,5,9,1,5,8,5], 5))
console.log(removeItemAll([2,5,9,1,5,8,5], 5))Copyright © 2021 Codeinu
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