javascript - 如何使用javascript将小数转换为固定格式

Question

我的表有十进制值。我的问题是如何在 2 位小数点后转换所有十进制值。

示例:

1)我的表格列值为 11.9 和 6.0。如何转换为这种格式 11.90 和 06.00

2)1045.7 到 1045.70

我正在使用 django 显示值 .my html 表代码使用这种格式而不是如何转换为固定

        <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

代码:

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

JSFIDDLE DEMO