Therefore, the cross-browser-compatible way to determine if a checkbox is checked is to use the property: if ( elem.checked ) if ( $( elem ).prop( "checked" ) ) if ( $( elem ).is( ":checked" ) ) The same is true for other dynamic attributes, such as selected and value. 1....
原文:Concerning boolean attributes, consider a DOM element defined by the HTML markup, and assume it is in a JavaScript variable namedelem: 译:我们来考虑布尔属性值,由假设 该input元素该用js变量elem命名.下面的操作都是按照这个input表单元素来操作的。 操作方式 操作结果 原文:According to theW3C forms...
value of the checkbox...The checked attribute value does not change with the state of the checkbox, while the checked property...Therefore, the cross-browser-compatible way to determine if a checkbox is checked is to use the property...参考资料: 1、jQuery attr 2、jQuery prop 3、W3C Forms...
使用了 jQuery 1.10 的版本,想实现 checkbox 的全部选中和全部取消选中,使用了 attr 的方法,如下: $(elem).attr(“checked”) 测试过程中发现,第一次从未选中状态变为选中,再从选中变为未选中,是可以的。但是第二次界面上就没有任何变化了,但是查看元素,发现 checked 属性实际上已经改变了。这是什么情况呢? ...
defaultChecked property and should be used only to set the initial value of the checkbox. The checked attribute value does not change with the state of the checkbox, while the checked property does. Therefore, the cross-browser-compatible way to determine if a checkbox is checked is to use ...
Add title to checkbox to indicate if the checkbox is checked or unchecked Use concrete listbox role instead of abstract select role Add focus to the cross “x” to clean the column filter when we navigate the table with keyboard and add the click event that cleans the column filter value ...
if($(this).attr("checked")) { $(this).removeAttr("checked"); } else { $(this).attr("checked",'true'); } }) }) $("#btn5").click(function(){ var str=""; $("[name='checkbox'][checked]").each(function(){ str+=$(this).val()+"/r/n"; ...
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Therefore, the cross-browser-compatible way to determine if a checkbox is checked is to use the property: if ( elem.checked ) if ( $( elem ).prop( "checked" ) ) if ( $( elem ).is( ":checked" ) ) The same is true for other dynamic attributes, such as selected and value....
Add title to checkbox to indicate if the checkbox is checked or unchecked Use concrete listbox role instead of abstract select role Add focus to the cross “x” to clean the column filter when we navigate the table with keyboard and add the click event that cleans the column filter value ...