noLabelWithoutControl
诊断类别:lint/a11y/noLabelWithoutControl
¥Diagnostic Category: lint/a11y/noLabelWithoutControl
自从:v1.8.0
¥Since: v1.8.0
来源:
¥Sources:
强制标签元素或组件具有文本标签和相关输入。
¥Enforce that a label element or component has a text label and an associated input.
“input” 被视为以下元素之一:input、meter、output、progress、select 或 textarea。
¥An “input” is considered one of the following elements: input, meter, output, progress, select or textarea.
有两种支持将标签与输入关联的方法:
¥There are two supported ways to associate a label with an input:
-
将输入封装在标签元素中。
¥Wrapping an input in a label element.
-
向标签添加
for属性(或 React 中的htmlFor)并为其分配与页面上的输入相关联的 DOM ID 字符串。¥Adding a
forattribute (orhtmlForin React) to a label and assigning it a DOM ID string associated with an input on the page.
此规则检查任何 label 元素(或将输出 label 元素的指定自定义组件)是否满足以下条件之一:
¥This rule checks that any label element (or an indicated custom component that will output a label element) meets one of these conditions:
-
封装
input元素(或将输出input元素的指定自定义组件)¥Wraps an
inputelement (or an indicated custom component that will output aninputelement) -
具有
for或htmlFor属性,并且label元素/组件具有可访问的文本内容。¥Has a
fororhtmlForattribute and that thelabelelement/component has accessible text content.
¥Examples
¥Invalid
<label for="js_id" />;code-block.jsx:1:1 lint/a11y/noLabelWithoutControl ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ A form label must be associated with an input.
> 1 │ <label for=“js_id” />;
│ ^^^^^^^^^^^^^^^^^^^^^
2 │
ℹ Consider adding an accessible text content to the label element.
<label for="js_id"><input /></label>;code-block.jsx:1:1 lint/a11y/noLabelWithoutControl ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ A form label must be associated with an input.
> 1 │ <label for=“js_id”><input /></label>;
│ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2 │
ℹ Consider adding an accessible text content to the label element.
<label htmlFor="js_id" />;code-block.jsx:1:1 lint/a11y/noLabelWithoutControl ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ A form label must be associated with an input.
> 1 │ <label htmlFor=“js_id” />;
│ ^^^^^^^^^^^^^^^^^^^^^^^^^
2 │
ℹ Consider adding an accessible text content to the label element.
<label htmlFor="js_id"><input /></label>;code-block.jsx:1:1 lint/a11y/noLabelWithoutControl ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ A form label must be associated with an input.
> 1 │ <label htmlFor=“js_id”><input /></label>;
│ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
2 │
ℹ Consider adding an accessible text content to the label element.
<label>A label</label>;code-block.jsx:1:1 lint/a11y/noLabelWithoutControl ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ A form label must be associated with an input.
> 1 │ <label>A label</label>;
│ ^^^^^^^^^^^^^^^^^^^^^^
2 │
ℹ Consider adding a for or htmlFor attribute to the label element or moving the input element to inside the label element.
<div><label /><input /></div>;code-block.jsx:1:6 lint/a11y/noLabelWithoutControl ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
✖ A form label must be associated with an input.
> 1 │ <div><label /><input /></div>;
│ ^^^^^^^^^
2 │
ℹ Consider adding an accessible text content to the label element.
ℹ Consider adding a for or htmlFor attribute to the label element or moving the input element to inside the label element.
¥Valid
<label for="js_id" aria-label="A label" />;<label for="js_id" aria-labelledby="A label" />;<label htmlFor="js_id" aria-label="A label" />;<label htmlFor="js_id" aria-labelledby="A label" />;<label>A label<input /></label>;<label>A label<textarea /></label>;<label><img alt="A label" /><input /></label>;¥Options
该规则支持以下选项:
¥The rule supports the following options:
-
inputComponents- 应被视为与input元素相同的组件名称数组。¥
inputComponents- An array of component names that should be considered the same as aninputelement. -
labelAttributes- 应被视为label可访问文本内容的属性数组。¥
labelAttributes- An array of attributes that should be treated as thelabelaccessible text content. -
labelComponents- 应被视为与label元素相同的组件名称数组。¥
labelComponents- An array of component names that should be considered the same as alabelelement.
选项 inputComponents 和 labelComponents 都不支持命名空间组件(例如 <Control.Input>)。
¥Both options inputComponents and labelComponents don’t have support for namespace components (e.g. <Control.Input>).
{ "//": "...", "options": { "inputComponents": ["CustomInput"], "labelAttributes": ["label"], "labelComponents": ["CustomLabel"] }}¥Related links