The snippet library.
Small, practical examples. Search by task or narrow things down below.
Check native form validity before proceeding
jQuery: Use the native checkValidity API from the selected form.
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Collect repeated form field names
jQuery: serializeArray preserves multiple values as name-value records.
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Delete a cached data entry
jQuery: removeData removes the jQuery cache value for the selected key.
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Distinguish current state from initial markup
jQuery: prop reads the live checked state; attr reads the original checked attribute.
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Refresh a cached data attribute deliberately
jQuery: After the first read, data caches a parsed value; removeData forces a new attribute read.
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Remove an optional attribute entirely
jQuery: removeAttr removes the attribute instead of setting a string that might still activate it.
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Restore a form’s original default values
jQuery: Call the native reset method through the underlying form element.
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Serialize successful controls for a URL-encoded request
jQuery: serialize includes named enabled controls and checked checkboxes.
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Set several selected options
jQuery: Passing an array to val selects matching values in a multiple select.
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Store an object associated with an element
jQuery: data retains JavaScript values without serializing them into HTML attributes.
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