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<script type="text/javascript">
let ary=[31,46,30,22];
? ? ? ? ? console.log(ary.pop())
? ? ? ? ? console.log(ary.reverse())
// 1.find
let temp=ary.find(item=>item%3===0);
console.log(temp);
//let arr = [99,2,3,4,5];
//let result = arr.some(function (item,index) {
//// console.log(item)
// console.log(index)
//? return item > 3
// });
//console.log(result);
////輸出
//true
let arr=[1,3,5,8,22,35];
console.log(arr.filter((item)=>{
return item>5
}))
//let ary=[12,31,46];
console.log(ary.includes(22));
//4.map 創(chuàng)建一個新的數(shù)組，其結果是該數(shù)組中每個元素都調用一個提供的函數(shù)執(zhí)行后的結果
console.log(ary.map(item => item * 10));
let a = Array.of(3, 11, 8); // [3,11,8]
let a1 = [1, 2, 3, 4, 5, 6, 7];
let item = a1.splice(0, 3); // [1,2,3]
console.log(a1); // [4,5,6,7]
var arrSimple=new Array(1,8,7,6);
// arrSimple.sort(function(a,b){
// return b-a
// });
// console.log(arrSimple)
function arr1(item){
item.sort(function(a,b){
return b-a
})
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}
arr1(arrSimple)
var objectList = new Array();
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objectList.push(new Persion('jack',20));
objectList.push(new Persion('tony',25));
objectList.push(new Persion('stone',26));
objectList.push(new Persion('mandy',23));
//按年齡從小到大排序
objectList.sort(function(a,b){
return a.age-b.age});
for(var i=0;i<objectList.length;i++){
console.log('<br />age:'+objectList[i].age+' name:'+objectList[i].name);
var list=('<div>age:'+objectList[i].age+' name:'+objectList[i].name+'</div>')
$('.list').append(list)
}
$.get('js/list.json',function(data){
var data2=data.users
data2.sort(function(a,b){
return a.id-b.id
})
console.log(data2)
})
</script>
