how to remove item from array javascript


var list = ["bar", "baz", "foo", "qux"];
list.shift()//["baz", "foo", "qux"]

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"]

var ar = ['zero', 'one', 'two', 'three'];
ar.shift(); // returns "zero"
console.log( ar ); // ["one", "two", "three"]

var cars = ["mazda","honda","tesla"];
cars = []; // clear/empty the array

var fruits = ["Banana", "Orange", "Apple", "Mango", "Kiwi"];
document.getElementById("demo").innerHTML = fruits;

function myFunction() {
fruits.splice(2, 2);
document.getElementById("demo").innerHTML = fruits;
}

var array = ["Item", "Item", "Delete me!", "Item"]

array.splice(2,1) // array is now ["Item","Item","Item"]

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how to remove an item from an array in javascript


//using filter method
let itemsToBeRemoved = ["Sunday", "Monday"]
var filteredArray = myArray.filter(item => !itemsToBeRemoved.includes(item))

var arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0];
var removed = arr.splice(2,2);
/*
removed === [3, 4]
arr === [1, 2, 5, 6, 7, 8, 9, 0]
*/

pop - Removes from the End of an Array.
shift - Removes from the beginning of an Array.
splice - removes from a specific Array index.
filter - allows you to programatically remove elements from an Array.

var inputArray = [5, 2, 7, 24, 75];
var valueToRemove = 7;
var outputArray = [];
for (let i = 0; i < inputArray.length; i++) {
if (inputArray[i] !== valueToRemove) {
outputArray.push(inputArray[i]);
}
}
console.log(outputArray); // [5, 2, 24, 75]

var array = [1, 2, 3, 4];
var evens = _.remove(array, function(n) {
return n % 2 === 0;
});
console.log(array);
// => [1, 3]
console.log(evens);
// => [2, 4]

var arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0];var removed = arr.splice(2,2);/*removed === [3, 4]arr === [1, 2, 5, 6, 7, 8, 9, 0]*/

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how to remove item from array in javascript


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);

var ar = ['zero', 'one', 'two', 'three'];
ar.shift(); // returns "zero"
console.log( ar ); // ["one", "two", "three"]

var fruits = ["Banana", "Orange", "Apple", "Mango", "Kiwi"];
document.getElementById("demo").innerHTML = fruits;

function myFunction() {
fruits.splice(2, 2);
document.getElementById("demo").innerHTML = fruits;
}

var data = [1, 2, 3];

// remove a specific value
// splice(starting index, how many values to remove);
data = data.splice(1, 1);
// data = [1, 3];

// remove last element
data = data.pop();
// data = [1, 2];

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"]

var array = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0];
var filtered = array.filter(function(value, index, arr){
return value > 5;
});
//array => [1, 2, 3, 4, 5, 6, 7, 8, 9, 0]
//filtered => [6, 7, 8, 9]

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