Question

我的表有小数值。我的问题是如何转换2位小数点后的所有十进制值。

示例：

1）我的表列值为11.9和6.0。如何转换为此格式11.90和06.00

2）1045.7至1045.70

enter image description here

我正在使用django来显示使用这种格式的.my html表格代码而不是如何转换tofixed

        <table class="table table-striped table-condensed table-bordered " id="child_table">
     <thead class="btn-primary" >
     <tr>

                <th >Year</th>
                <th >Estimated Mid-Year-Population</th>
                <th colspan="3" >Infanticide</th>
                <th colspan="3" >Murder</th>
                <th colspan="3" >Rape</th>
                <th colspan="3" >Kidnapping & Abduction</th>
                <th colspan="3" >Abetment Of Suicide</th>
                <th colspan="3" >Child Marriage Restraint Act</th>
                <th colspan="3" >Other Crimes</th>

     </tr>

    </thead>

  <td></td>
  <th></th>
  <th>(I)ncidance</th>
     <th>(R)ate</th>
     <th>%</th>
     <th>I</th>
     <th>R</th>
     <th>%</th>
     <th>I</th>
     <th>R</th>
    <th>%</th>
     <th>I</th>
     <th>R</th>
     <th>%</th>
    <th>I</th>
     <th>R</th>
     <th>%</th>
     <th>I</th>
     <th>R</th>
     <th>%</th>
     <th>I</th>
     <th>R</th>
    <th>%</th>

</tr>

        <tbody id="crimec">
         {% for query_all in crime_filter %}
             <tr id="crime_child">

                 <td>{{ query_all.year}}</td>
                <td>{{ query_all.mid_year_population }}</td>

                <td>{{ query_all.infanticide_incidence }}</td>


                  {% if query_all.infanticide_rate > 0 %}
                 <td>{{ query_all.infanticide_rate }}</td>
                 {% else %}
                 <td> </td>
                 {% endif %}
                <td>{{ query_all.infanticide_percentage }}</td>
                <td>{{ query_all.murder_incidence }}</td>
                  <td>{{ query_all.murder_rate }}</td>
                  <td>{{ query_all.murder_percentage }}</td>
                <td>{{ query_all.rape_incidence }}</td>
                  <td>{{ query_all.rape_rate }}</td>
                  <td>{{ query_all.rape_percentage }}</td>
                <td>{{ query_all.kidnapping_abduction_i }}</td>
             <td>{{ query_all.kidnapping_abduction_r }}</td>
             <td>{{ query_all.kidnapping_abduction_p }}</td>
             <td>{{ query_all.abetment_suicide_i }}</td>
              {% if query_all.abetment_suicide_r > 0 %}
             <td>{{ query_all.abetment_suicide_r }}</td>
             {% else %}
                 <td> </td>
             {% endif %}
             <td>{{ query_all.abetment_suicide_p }}</td>
             <td>{{ query_all.child_marriage_act_i }}</td>

              {% if query_all.child_marriage_act_r > 0%}
             <td>{{ query_all.child_marriage_act_r }}</td>
             {% else %}
                 <td> </td>
             {% endif %}
             <td>{{ query_all.child_marriage_act_p }}</td>
             <td>{{ query_all.total_i }}</td>
             <td>{{ query_all.total_r }}</td>
             <td>{{ query_all.total_p }}</td>

            </tr>

         {% endfor %}
        </tbody>
    </table>

Answer 1

var value = 11.9;

if(!isInt(value)){

      var changeValue = value.toFixed(2);
}

console.log(changeValue); // returns 11.90

// check int or float;
function isInt(n) {
   return n % 1 === 0;
   }

Answer 2

您可以使用Number.toFixed（）方法。

  var num = 5.5;
  console.log(num.toFixed(2)) // this will return 5.50

Answer 3

将parseFloat与toFixed()结合使用：

parseFloat(6).toFixed(2);

JS小提琴： http://jsfiddle.net/25hJC/

Answer 4

CODE：

   var val=6;
var precision=2;
val = val.toFixed(precision);
if( val < 10.00 )
    val = "0"+val
alert(val)

JSFIDDLE DEMO

如何使用javascript将十进制转换为固定格式

4 个答案: