Javascript remove array item by value
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 array item by value
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"]delete item from list javascript
const array = [1, 2, 3];
const index = array.indexOf(2);
if (index > -1) {
array.splice(index, 1);
}remove a value from array js
const index = array.indexOf(item);
if (index > -1) {
array.splice(index, 1);
}remove value from array javascript
// remove 5
let arr = [1,2,3,4,5,6];
let remove = arr.filter((id) => id !== 5)
console.log(remove) // [1,2,3,4,6]remove object in array javascript
//1
someArray.shift(); // first element removed
//2
someArray = someArray.slice(1); // first element removed
//3
someArray.splice(0, 1); // first element removed
//4
someArray.pop(); // last element removed
//5
someArray = someArray.slice(0, a.length - 1); // last element removed
//6
someArray.length = someArray.length - 1; // last element removedremove array js
var ar = [1, 2, 3, 4, 5, 6];ar.length = 4; // set length to remove elementsconsole.log( ar ); // [1, 2, 3, 4]
// //////////////////////////////////////
var ar = [1, 2, 3, 4, 5, 6];ar.pop(); // returns 6console.log( ar ); // [1, 2, 3, 4, 5]
// //////////////////////////////////////
var ar = ['zero', 'one', 'two', 'three'];ar.shift(); // returns "zero"console.log( ar ); // ["one", "two", "three"]
// //////////////////////////////////////
var arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0];var removed = arr.splice(2,2);
// //////////////////////////////////////
["bar", "baz", "foo", "qux"]list.splice(0, 2) // Starting at index position 0, remove two elements ["bar", "baz"] and retains ["foo", "qux"].
// //////////////////////////////////////
var arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0];
for( var i = 0; i < arr.length; i++){
if ( arr[i] === 5) {
arr.splice(i, 1);
}
}//=> [1, 2, 3, 4, 6, 7, 8, 9, 0]
// //////////////////////////////////////
var arr = [1, 2, 3, 4, 5, 5, 6, 7, 8, 5, 9, 0];
for( var i = 0; i < arr.length; i++){
if ( arr[i] === 5) {
arr.splice(i, 1); i--;
}
}//=> [1, 2, 3, 4, 6, 7, 8, 9, 0]
// //////////////////////////////////////
var array = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0];
var filtered = array.filter(function(value, index, arr){
return value > 5;
});//filtered => [6, 7, 8, 9]//array => [1, 2, 3, 4, 5, 6, 7, 8, 9, 0]
// //////////////////////////////////////
var evens = _.remove(array, function(n) {
return n % 2 === 0;
});
console.log(array);// => [1, 3]console.log(evens);// => [2, 4]
// //////////////////////////////////////
function arrayRemove(arr, value) {
return arr.filter(function(ele){
return ele != value; });
}
var result = arrayRemove(array, 6);// result = [1, 2, 3, 4, 5, 7, 8, 9, 0]
// //////////////////////////////////////
var ar = [1, 2, 3, 4, 5, 6];delete ar[4]; // delete element with index 4console.log( ar ); // [1, 2, 3, 4, undefined, 6]alert( ar ); // 1,2,3,4,,6Copyright © 2021 Codeinu
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