Common methods for JavaScript arrays

Sort ()  array sorting [3, 6, 2, 4, 1, 5] = = [6,5,4,3,2,1]//a-b is ascending b-a is descending numberarray.sort (function (A, b) {    return b-a;}) Reverse () Reverses the order of the array//push () pop () Unshift () after adding the array followed by the delete array before you add the array before you delete the array//join () toString () and the array is converted to string//splice () Adds and modifies an array of splice (2,1, "abc") to replace the value of 2 with an index value of Abcsplice (2,0, "abc") in all increments of 2 abcsplice (2,2, "abc") at all values of 2 and 3 replaced with Abc//slice Select array element index value start index value End Arr.slice (star,end)

　　

Common methods for JavaScript arrays