Answers for "how to remove one element from an array in javascript"

282

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"]
Posted by: Guest on July-19-2019
10

js remove from array by value

const index = array.indexOf(item);
if (index !== -1) array.splice(index, 1);
Posted by: Guest on March-30-2020
8

how to remove element from array in javascript

/* there are 3 ways to do so
1) pop(), which removes the last element
2) shift(), which removes the first element
3) splice(), which removes any element with a specified index.
of these only splice() takes parameters. the first parameter it takes is the
index of the element to be removed, an integer. the second is the number of 
elements to be removed, again integer. the third and fourth etc. are optional,
which is to be used if you want to replace them. Example: */
let numbers = [1, 2, 3, 4, 5];
numbers.pop(); // removes 5
numbers.shift(); // removes 1
let threeIndex = numbers.indexOf(3); // used for long arrays
numbers.splice(threeIndex, 1); // without replacement
numbers.splice(threeIndex, 1, 7) // 3 will now be replaced by 7
Posted by: Guest on November-11-2020
5

js remove item array

let originalArray = [1, 2, 3, 4, 5];

let filteredArray = originalArray.filter((value, index) => index !== 2);
Posted by: Guest on November-17-2020
0

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))
Posted by: Guest on June-20-2021

Code answers related to "how to remove one element from an array in javascript"

Code answers related to "Javascript"

Browse Popular Code Answers by Language