How to Correctly Select Input Elements with Square Brackets in Their Name Attribute using jQuery?

Selecting Input Elements with Square Brackets in Name Attributes using jQuery

When attempting to select input elements with square brackets in the name attribute, users may encounter difficulties with traditional jQuery selectors. This article explores the correct approach to selecting such elements.

Problem Statement

The following code snippet demonstrates attempts to select an input element with a name attribute containing square brackets:

$('input[inputName[]=someValue]')
$('input[inputName[]=someValue]')
$('input["inputName[]"=someValue]')

However, these approaches do not yield the desired result.

Solution

According to the jQuery documentation, the correct syntax to escape special characters in the name attribute is to use the backslash character () as follows:

$('input[inputName\[\]=someValue]')

Correcting the Original Selector

Furthermore, the original selector was attempting to combine two conditions:

• Select inputs with the name "inputName[]"
• Filter results to include only those with a value of "someValue"

The correct selector, combining the methods for escaping special characters and filtering, would be:

$('input[name="inputName[]"][value="someValue"]')

This selector successfully locates the input element with the "inputName[]" name attribute and "someValue" value.

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