Detailed explanation of array sorting in js

When sorting arrays in JavaScript, I summarized three methods: sort sorting, bubble sorting and selection sorting.

var arr = [1,22,3,4,5,6,7,8,9,10];

sort sorting:

It is implemented using the method sort() in the array.

<span style="color: #ff0000">function <strong><code class="js plain">systemSort (arr)##{
# return arr.sort(
#                                                                                                                                                                      ##{ return a - b; }## );
## }
Bubble sorting：
## The bubble method uses array traversal for comparison. Continuous comparison will traverse the minimum or maximum values ​​one by one.                                                                                                                                                                                                         var i = 0; i < arr.length-1; i++) {//How many rounds to compare 9## for (var j = 0; j < arr .length-1-i; j++) {//The number of comparisons in each round                                                                                                                                                                                                                                       var temp = arr[j];##                              arr[j] = arr[j+1 ];#                                       arr[j+1] = temp;##                            }                                                                                                                  #Selection sort: The selection sort method is to use the first data of the array as the maximum or minimum value, and then output an ordered array through a comparison loop.                                                                                                              FUNCTION Selectsort1 (ARR) {## For (var I = 0; I & LT; Arrr.Length-1) {//// /Comparison rounds of the outer loop## Number counter (ARR [J] & GT; ARR [J+1]) { v varte = arr[j];#                                                    arr[j +1] = temp;##                                                                   ##

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