How to determine whether a checkbox is selected in jquery

Jquery method to determine whether the check box is selected: You can use the prop method to determine, such as [$(selector).prop("checked");]. The prop method is used to obtain the attribute value of the first element in the matched element set.

The operating environment of this tutorial: Windows 10 system, jquery version 2.2.4. This method is suitable for all brands of computers.

(Recommended tutorial: jquery video tutorial)

Introduction to judgment method:

1. Attribute acquisition method

$(selector).prop("checked");

2. Selector matching method

$(selector).is(":checked");

The function of the prop() method: Get the attribute value of the first element in the matched element set.

The prop() method obtains the Properties property.

Code implementation:

<!-- js -->
$("#test").click(function () {
     console.log($(this).prop("checked"));   //属性
    console.log($(this).is(":checked"));    //选择器
    console.log($(this).get(0).checked);    //原生
})

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