用 JS 循环将数组按照特定倍数拆分并创建新数组的技巧

        var chartArr = [
        {value:1,name:'哈哈'},
        {value:2,name:'哈哈'},
        {value:3,name:'哈哈'},
        {value:4,name:'哈哈'},
        {value:5,name:'哈哈'},
        {value:6,name:'哈哈'},
        {value:7,name:'哈哈'},
        {value:8,name:'哈哈'},
        {value:9,name:'哈哈'},
        {value:10,name:'哈哈'},
        {value:11,name:'哈哈'},
        {value:12,name:'哈哈'},
        {value:13,name:'哈哈'}
        ];
        var allData = []; //用来装处理完的数组
        var currData = []; //子数组用来存分割完的数据
        //循环需要处理的数组
        for(var i = 0; i < chartArr.length; i++) {
            //将chartArr[i]添加到子数组
            currData.push(chartArr[i]);
            console.log(i)
            //在这里求4的余数,如果i不等于0,且可以整除 或者考虑到不满4个或等于4个的情况就要加上  i等于当前数组长度-1的时候
            if((i != 0 && (i + 1) % 4 == 0) || i == chartArr.length - 1) {
                //把currData加到allData里
                allData.push(currData);
                //在这里清空currData
                currData = [];
            }
        };