Removing Elements from End of a JavaScript Array
var arr = [1, 2, 3, 4, 5, 6];
arr.length =
arr.length - 2;
console.log( arr ); // [1, 2, 3, 4]
Removing Elements from Beginning of a JavaScript Array
var arr = ['zero', 'one', 'two', 'three'];
arr.shift(); // returns "zero"
console.log( arr ); // ["one", "two", "three"]
Using Splice to Remove Array Elements in JavaScript
var arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0];
var removed = arr.splice(2,2);
Removing Array Items By Value Using Splice
var arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0];
var index = arr.indexOf(1)
arr.splice(index, 1);
console.log(arr) //[1,3,4,5,6,7,8,9,0]
Using the Array filter Method to Remove Items By Value
var arr = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0];
var filtered = arr.filter(function(value, index, ar){
return value > 5;
});
//filtered => [6, 7, 8, 9]
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