计算相同数组个数
function totalArr(arry) {
var arr = []
var result = arry
result.sort()
for (var i = 0; i < result.length;) {
var count = 0;
for (var j = i; j < result.length; j++) {
if (result[i] === result[j]) {
count++;
}
}
var newArr = []
newArr.push(result[i], count)
arr.push(newArr)
i+=count;
}
return arr;
}
var resultArr = ['北京', '北京', '北京', '上海', '广州', '广州']
var ss = totalArr(resultArr)
多维数组根据对象进行排序
var arr = [
{name:'zopp',age:0},
{name:'gpp',age:18},
{name:'yjj',age:8}
];
function compare(property){
return function(a,b){
var value1 = a[property];
var value2 = b[property];
return value1 - value2;
}
}
console.log(arr.sort(compare('age')))
