Question

我想创建一个随机表数据，但只有单元格随机排列总是重复的行。这是我的代码：

组件/余烬-app..js

    import Ember from 'ember';

export default Ember.Component.extend({
  willRender: function() {
    var tableRows = [];
    var value = ['|', '-'];
    var numRows = 20;
    var numCells = 20;
    for (var row = 1; row <= numRows; row++) {
      for (var cell = 1; cell <= numCells; cell++) {
        tableRows[row] = value[Math.round(Math.random())];
      }
    }

    this.set('rows', {
      'tableRows': tableRows,
    });

  }
});

和templates / components / ember-app.hbs

  <table>
{{#each-in rows as |table tableRow|}}
{{#each tableRow}}
  <tr>
      {{#each tableRow as |tableRows|}}
      <td><button id="button_id"{{action "changeValue"}} value="{{tableRows}}">{{tableRows}}</button></td>
      {{/each}}
  </tr>
  {{/each}}
  {{/each-in}}
</table>

Answer 1

您没有为每一行创建不同的单元格值

Component.js

<table>
{{#each-in rows as |table tableRow|}}
{{log 'tableRow ' tableRow ' table ' table}}
{{#each tableRow as |singleRow|}}
  <tr>
      {{#each singleRow as |tableRows|}}
      <td><button id="button_id"{{action "changeValue"}} value="{{tableRows}}">{{tableRows}}</button></td>
      {{/each}}
  </tr>
  {{/each}}
  {{/each-in}}
</table>
{{yield}}

在组件hbs中，

Ember.Object

我建议你考虑init并使用init hook来gci c:\temp\backup\*.bak | ren -N { $_ -replace 'backup_\d+_\d+_\d+_' } -whatif # get matching files and | rename them with new names # replacement pattern is 'backup' followed by strings of digits and underscores, replaced with nothing.数据。 ember-twiddle

如何在Ember.Js中创建包含随机数据的表

1 个答案: