对于IE中的每个JavaScript支持？ [英] for each JavaScript Support in IE?

问题描述

我有这段代码：

<script>
function toggle(source) {

  checkboxes = document.getElementsByName('DG1');
  for each(var checkbox in checkboxes)
    checkbox.checked = source.checked;

  checkboxes = document.getElementsByName('DG2');
  for each(var checkbox in checkboxes)
    checkbox.checked = source.checked;

  checkboxes = document.getElementsByName('DG3');
  for each(var checkbox in checkboxes)
    checkbox.checked = source.checked;

  checkboxes = document.getElementsByName('DG4');
  for each(var checkbox in checkboxes)
    checkbox.checked = source.checked;

  checkboxes = document.getElementsByName('DG5');
  for each(var checkbox in checkboxes)
    checkbox.checked = source.checked;
}
</script>

<input type="checkbox" onClick="toggle(this)" />Select All<br/>

<form method=POST action="DGUsageServlet">
    <input type="checkbox" name="DG1">DG1</input>
    <input type="checkbox" name="DG2">DG2</input>
    <input type="checkbox" name="DG3">DG3</input>
    <input type="checkbox" name="DG4">DG4</input>
    <input type="checkbox" name="DG5">DG5</input>
</form>

如何让上述脚本在IE中运行？

How can I make the above script to work in IE?

推荐答案

请注意，Firefox不再支持每个循环，因此这适用于每个浏览器，而不仅仅是Internet Explorer。 请参阅此MDN文章了解替代方案。

Note that Firefox no longer supports for each loops, so this applies to every browser, not just Internet Explorer. See this MDN article for alternatives.

Internet Explorer不支持for each循环（以及其他已删除的现代浏览器）支持他们）。您需要更改代码以使用常规for循环：

Internet Explorer doesn't support "for each" loops (along with other modern browsers, which have dropped support for them). You will need to change the code to use regular for loops:

function toggle(source) {
    var checkboxes = document.getElementsByName('DG1');
    for (var i = 0; i < checkboxes.length; i++) {
        checkboxes[i].checked = source.checked;
    }
    ...
}

或者，你可以使用像jQuery这样的库，并按照以下方式执行：

Or, you could use a library like jQuery and do it like this:

function toggle(source) {
    $("input[name^=DG]").attr("checked", source.checked);
}

这篇关于对于IE中的每个JavaScript支持？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！