React ignores 'for' attribute of the label element

326
votes

In React (Facebook's framework), I need to render a label element bound to a text input using the standard for attribute.

e.g. the following JSX is used:

<label for="test">Test</label>
<input type="text" id="test" />

However, this produces HTML missing the required (and standard) for attribute:

<label>Test</label>
<input type="text" id="test">

What am I doing wrong?

6
reactjslabel

6 Answers

626
votes

The for attribute is called htmlFor for consistency with the DOM property API. If you're using the development build of React, you should have seen a warning in your console about this.

34
votes

Yes, for react,

for becomes htmlFor

class becomes className

etc.

see full list of how HTML attributes are changed here:

https://facebook.github.io/react/docs/dom-elements.html

15
votes

For React you must use it's per-define keywords to define html attributes.

class -> className

is used and

for -> htmlFor

is used, as react is case sensitive make sure you must follow small and capital as required.

4
votes

both for and class are reserved words in JavaScript this is why when it comes to HTML attributes in JSX you need to use something else, React team decided to use htmlFor and className respectively

0
votes

That is htmlFor in JSX and class is className in JSX