Javascript to merge two arrays and remove duplicate items and leave only one method _ javascript tips-JS tutorial

This article mainly introduces how to merge two arrays in JavaScript and leave only one repeat entry removed. It involves techniques related to JavaScript Array merging and deduplication, for more information about how to merge two arrays and remove duplicate items, see the example in this article. We will share this with you for your reference. The details are as follows:

// It's merge arr1 and arr2, delete the same element only leave one // It's only apdapter array. if object, no. // The sequence of the two array is not required. mergeArray: function (arr1, arr2) {for (var I = 0; I <arr1.length; I ++) {for (var j = 0; j <arr2.length; j ++) {if (arr1 [I] === arr2 [j]) {arr1.splice (I, 1); // use the splice function to delete elements from position I, intercept 1 element }}// alert (arr1.length) for (var I = 0; I
Another premise is that the items in the two arrays are not repeated. If they are repeated, they cannot achieve the desired effect.
I hope this article will help you design JavaScript programs.