Question

    [{"dir":"down","sym":"oo","b":"1.35553","a":"1.35556"},
    {"dir":"down","sym":"pp","b":"1.64442","a":"1.64451"},
    {"dir":"down","sym":"qq","b":"104.603","a":"104.609"},
    {"dir":"up","sym":"rr","b":"0.88186","a":"0.88191"},
    {"dir":"up","sym":"ss","b":"1.09667","a":"1.09672"}]

从上面的json我需要为b＆amp;添加使用jquery的最后一位数字，我的jquery是

   <script type="text/javascript">
    jQuery(window).load(function(){
    setInterval(function() {
    $.ajax({
        cache: false,
            url: 'get.php',
            dataType: 'json',
            success: function(json){
            var dd="";
            for(var i=0;i<json.length;i++){
                if(json[i].dir == 'up'){
             var ii= '<img src="img/up.gif" />';        
            } else {
            var ii= '<img src="img/down.gif" />';       
            }
                dd += ii + '-' + json[i].sym+ '-' + json[i].b+ '-' + json[i].a+'--';
            }
    $('#divToRefresh').html(dd);
        }
    });
    }, 1000); 
    });
    </script>

我需要这个例子：

     json[0].b="1.3555³";
     json[0].a="1.3555⁶";

我如何从json代码通过jquery得到上面的例子，任何想法..

Answer 1

试试这个：

var a = 1.35556.toString();
var start = a.substr(0, a.length-1);
var end = a.substr(-1);
console.log(start + end.sup()); // 1.3555<sup>6</sup>

在json数组的最后一位数字上添加<sup> </sup>

1 个答案: