自定義sort函式排序標準
阿新 • • 發佈:2018-11-08
function compareStandard(key){ return function(obj1,obj2){ let val1=obj1[key]; let val2=obj2[key]; if (val1<val2) { return -1; }else if (val1>val2) { return 1; }else{ return 0; } } } const arr=[ {name:'Tom',age:22,height:170}, {name:'Mary',age:21,height:165}, {name:'Mike',age:18,height:180} ]; arr.sort(compareStandard('age')); //0: {name: "Mike", age: 18, height: 180} //1: {name: "Mary", age: 21, height: 165} //2: {name: "Tom", age: 22, height: 170} arr.sort(compareStandard('height')); //0: {name: "Mary", age: 21, height: 165} //1: {name: "Tom", age: 22, height: 170} //2: {name: "Mike", age: 18, height: 180}