JS comes with the sort () method

1. Overview of methods

Array sort() method defaults to converting all elements to string and then sorting by Unicode.

Sort () changes the original array and returns the array after the change (sort).

2. Example

2.1 If no custom method is provided, the array element is converted to a string and returns the result of the order of the string under Unicode encoding

varFruit = [' cherries ', ' apples ', ' bananas '];fruit.sort (); //[' apples ', ' bananas ', ' cherries ']varscores = [1, 10, 2, 21]; Scores.sort (); //[1, 2, ten]//Watch out of that Ten comes before 2,//because ' comes before ' 2 ' in Unicode code point order.varthings = [' word ', ' word ', ' 1 word ', ' 2 Words '];things.sort (); //[' 1 word ', ' 2 Words ', ' word ', ' word ']//in Unicode, numbers come before upper case letters,//which come before lower case letters.

2.2 Using Map to sort

//The array to be sortedvarlist = [' Delta ', ' alpha ', ' CHARLIE ', ' Bravo '];//temporary array holds objects with position and Sort-valuevarMapped = List.map (function(el, i) {return{index:i, value:el.toLowerCase ()};})//sorting the mapped array containing the reduced valuesMapped.sort (function(A, b) {return+ (A.value > B.value) | | + (A.value = = = B.value)-1;});//container for the resulting ordervarresult = Mapped.map (function(EL) {returnList[el.index];}); alert (result);

Reference Https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/sort

　　　

JS comes with the sort () method