First, to achieve the basic syntax of this function js
升序
for (var i = 0; i < arr.length; i++) {
for (var j = 0; j < arr.length - 1 - i; j++) {
if (arr[j] > arr[j + 1]) {
var temp = arr[j + 1];
arr [j + 1 ] = arr [j];
arr[j] = temp;
}
}
}
Then the function package, since learning is now js basic level, it is not used arr. sort. But with the named function sort, mainly of small white finishing a thought
function sort(arrIn, fn) {
for (var i = 0; i < arrIn.length; i++) {
for (var j = 0; j < arrIn.length - 1 - i; j++) {
// ARR [J]> ARR [J +. 1] This is the time when switching variable ascending, arr [j + 1]> arr [j] is descending at this time performs variable
var Result = Fn (ARR [J], ARR [+ J . 1 ]);
IF (Result> 0 ) {
var TEMP = arrIn [J + . 1 ];
reaches [j + 1 ] = reaches [j];
reaches [j] = temp;
};
}
}
}
sort(arr, function (a, b) {
return a - b;
})
console.log(arr);
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Package forEach () method
