JavaScript removes a specified value element from an array _javascript tips

This example describes how JavaScript removes a specified value element from an array. Share to everyone for your reference. The specific analysis is as follows:

The following code uses two ways to delete an element of an array, the first defines a separate function, and the second defines a Removebyvalue method for the array object, which is very simple to call

Define function Removebyvalue for element deletion

function Removebyvalue (arr, Val) {for
  (var i=0; i<arr.length; i++) {
    if (arr[i] = = val) {
      Arr.splice (i, 1); Break
      ;
}
}} var somearray = ["Mon", "Tue", "Wed", "Thur"]
removebyvalue (Somearray, "Tue");
Somearray'll now have "mon", "Wed", "Thur"

Adding a corresponding method to an array of objects makes the call easier by calling the Removebyvalue method of the arrays directly to remove the specified element

Array.prototype.removeByValue = function (val) {for
  (var i=0; i<this.length; i++) {
    if (this[i] = val) {
  this.splice (i, 1);
      break;
    }
}} var somearray = ["Mon", "Tue", "Wed", "Thur"]
somearray.removebyvalue ("Tue");
Somearray'll now have "mon", "Wed", "Thur"

I hope this article will help you with your JavaScript programming.