delete element of array javascript

1var colors = ["red","blue","car","green"];
2var carIndex = colors.indexOf("car");//get  "car" index
3//remove car from the colors array
4colors.splice(carIndex, 1); // colors = ["red","blue","green"]

1var data = [1, 2, 3];
2
3// remove a specific value
4// splice(starting index, how many values to remove);
5data = data.splice(1, 1);
6// data = [1, 3];
7
8// remove last element
9data = data.pop();
10// data = [1, 2];

1let value = 3
2
3let arr = [1, 2, 3, 4, 5, 3]
4
5arr = arr.filter(item => item !== value)
6
7console.log(arr)
8// [ 1, 2, 4, 5 ]

1// Remove single item
2function removeItemOnce(arr, value) {
3   var index = arr.indexOf(value);
4   if (index > -1) {
5      arr.splice(index, 1);
6   }
7   return arr;
8}
9
10// Remove all items
11function removeItemAll(arr, value) {
12   var i = 0;
13   while (i < arr.length) {
14      if (arr[i] === value) {
15         arr.splice(i, 1);
16      } else {
17         ++i;
18      }
19   }
20   return arr;
21}
22
23// Usage
24console.log(removeItemOnce([2, 5, 9, 1, 5, 8, 5], 5));
25console.log(removeItemAll([2, 5, 9, 1, 5, 8, 5], 5));

1var array = [123, "yee", true];
2array.pop(index);

1> let array = ["a", "b", "c"];
2> let index = 1;
3> array.splice(index, 1);
4[ 'b' ]
5> array;
6[ 'a', 'c' ]