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In jQuery 1.9 v checkbox is not checked, once I have unchecked it, trying to check again by clicking on button
$("#add_cart_checkbox").attr("checked",'checked') ; 
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To check whether a Checkbox has been checked, in jQuery, you can simply select the element, get its underlying object, instead of the jQuery object ( [0] ) and use the built-in checked property: let isChecked = $('#takenBefore')[0]. checked console. log(isChecked);
By using jQuery function prop() you can dynamically add this attribute or if present we can change its value i.e. checked=true to make the checkbox checked and checked=false to mark the checkbox unchecked.
Answer: Use the jQuery prop() method You can use the jQuery prop() method to check or uncheck a checkbox dynamically such as on click of button or an hyperlink etc. The prop() method require jQuery 1.6 and above.
Checking if a checkbox is checked First, select the checkbox using a DOM method such as getElementById() or querySelector() . Then, access the checked property of the checkbox element. If its checked property is true , then the checkbox is checked; otherwise, it is not.
You have to use prop, and pass it a boolean:
$("#add_cart_checkbox").prop("checked", true) ; If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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