JavaScript method to delete the corresponding element in the array through the element index number_javascript skills

The example in this article describes how JavaScript deletes the corresponding element in the array through the element index number. Share it with everyone for your reference. The specific analysis is as follows:

JavaScript deletes elements in the array through the index number of the element. If you want to delete the third element, use RemoveValByIndex(2). The JS array starts from 0

function RemoveValByIndex(arr, index) {
  arr.splice(index, 1);
}
test = new Array();
test[0] = 'Apple';
test[1] = 'Ball';
test[2] = 'Cat';
test[3] = 'Dog';
alert("Array before removing elements: "+test);
RemoveValByIndex(test, 2);
alert("Array after removing elements: "+test);

I hope this article will be helpful to everyone’s JavaScript programming design.