How to Disable or Enable an Input with jQuery
When working with HTML input fields, it is often necessary to disable or enable them for various reasons. jQuery provides multiple ways to accomplish these tasks.
Standard Method (jQuery 1.6 )
Since jQuery 1.6, the preferred method to modify the disabled property is through the .prop() function.
Disable:
$("input").prop('disabled', true);
Enable:
$("input").prop('disabled', false);
jQuery 1.5 and Below
In jQuery versions prior to 1.6, the .prop() function is not available. Instead, use the .attr() function:
Disable:
$("input").attr('disabled','disabled');
Enable:
$("input").removeAttr('disabled');
DOM Object Method
Regardless of the jQuery version, you can directly access the DOM object and modify its disabled property:
Disable:
this.disabled = true;
Enable:
this.disabled = false;
Note for jQuery 1.6 :
In jQuery versions 1.6 , a .removeProp() method is available. However, it should not be used to remove native properties like disabled, as it permanently removes them. Instead, use .prop() to set the property to false.
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