javascript - Constructive bubble sort not working as expected -

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i'm trying create simple bubble sort in javascript , cannot understand why code not working, problem seems coming second if statement, not know exact problem browser i'm testing in refuses load page when using code.

var arr =  [4, 6, 0, 3, -2, 1]; var arr2 = [arr[0]];  arr.foreach(function(elem){     for(var j=0; j<arr2.length; j++){         if(elem < arr2[j]){             arr2.splice(j, 0, elem);             break;         }             //if number largest on last iteration add end of array         if(j == arr2.length-1){              console.log(elem);               //problem seems here              arr2[arr2.length] = elem;         }     } });  console.log(arr); console.log(arr2);

you're adding elem array .splice if lower arr[j] never removing old instance of elem. conesquently, you're adding items array , getting larger. need take out old instance of elem array array length remains constant iteration iteration.

so, somewhere, should passing 1 second argument of splice take out of array.

https://developer.mozilla.org/en-us/docs/web/javascript/reference/global_objects/array/splice


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