JavaScript custom sorting criteria

<html>
<script type="text/javascript">
	var arr = [0,2,1,3];
	function com(v1,v2){
		if(v1 < v2 ){
			return -1;
		}
		else if(v1 > v2 ){
			return 1;
		}
		else return 0;
	}

arr.sort(com);
var TDC = [];
customSort();
debugger;

function Person(name, age){
	this.name = name;
	this.age = age;
}

function customSort(){
	var J1 = new Person("Jerry", 3);
	var J2 = new Person("Tom", 1);
	var J3 = new Person("Swim", 2);

	TDC.push(J1);
	TDC.push(J2);
	TDC.push(J3);
	TDC.sort(sortByAge);
}

function sortByAge(person1, person2){
	if(person1.age < person2.age ){
			return -1;
		}
		else if(person1.age > person2.age ){
			return 1;
		}
		else return 0;
}
</script>
</html>
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Origin blog.csdn.net/i042416/article/details/105086670