securityos

3.7 KiB

Raw Permalink Blame History

🚫 This rule is disabled in the following configs: ☑️ recommended, 🔒 strict.

Enforce that a control (an interactive element) has a text label.

There are two supported ways to supply a control with a text label:

Provide text content inside the element.
Use the aria-label attribute on the element, with a text value.
Use the aria-labelledby attribute on the element, and point the IDREF value to an element with an accessible label.
Alternatively, with an img tag, you may use the alt attribute to supply a text description of the image.

The rule is permissive in the sense that it will assume that expressions will eventually provide a label. So an element like this will pass.

<button type="button">{maybeSomethingThatContainsALabel}</button>

How do I resolve this error?

Case: I have a simple button that requires a label.

Provide text content in the button element.

<button type="button">Save</button>

Case: I have an icon button and I don't want visible text.

Use the aria-label attribute and provide the text label as the value.

<button type="button" aria-label="Save" class="icon-save" />

Case: The label for my element is already located on the page and I don't want to repeat the text in my source code.

Use the aria-labelledby attribute and point the IDREF value to an element with an accessible label.

<div id="js_1">Comment</div>
<textarea aria-labelledby="js_1"></textarea>

Case: My label and input components are custom components, but I still want to require that they have an accessible text label.

You can configure the rule to be aware of your custom components. Refer to the Rule Details below.

<CustomInput label="Surname" type="text" value={value} />

Rule options

This rule takes one optional object argument of type object:

{
  "rules": {
    "jsx-a11y/control-has-associated-label": [ 2, {
      "labelAttributes": ["label"],
      "controlComponents": ["CustomComponent"],
      "ignoreElements": [
        "audio",
        "canvas",
        "embed",
        "input",
        "textarea",
        "tr",
        "video",
      ],
      "ignoreRoles": [
        "grid",
        "listbox",
        "menu",
        "menubar",
        "radiogroup",
        "row",
        "tablist",
        "toolbar",
        "tree",
        "treegrid",
      ],
      "depth": 3,
    }],
  }
}

labelAttributes is a list of attributes to check on the control component and its children for a label. Use this if you have a custom component that uses a string passed on a prop to render an HTML label, for example.
controlComponents is a list of custom React Components names that will render down to an interactive element.
ignoreElements is an array of elements that should not be considered control (interactive) elements and therefore they do not require a text label.
ignoreRoles is an array of ARIA roles that should not be considered control (interactive) roles and therefore they do not require a text label.
depth (default 2, max 25) is an integer that determines how deep within a JSXElement the rule should look for text content or an element with a label to determine if the interactive element will have an accessible label.

Succeed

<button type="button" aria-label="Save" class="icon-save" />

Fail

<button type="button" class="icon-save" />

3.7 KiB Raw Permalink Blame History

jsx-a11y/control-has-associated-label