History

Emily Eisenberg 4d2e46e7f6 Remove trailing commas for IE 9 compatibility Summary: IE 9 doesn't like trailing commas. When we introduced eslint, we added a bunch of trailing commas, which makes IE 9 sad. Test Plan: - `make lint` - Visit http://localhost:7936/ using IE 9 on browserstack. - See that the math loads, and there are no errors in the F12 developer tools. @kevinb		2017-01-06 19:06:01 -08:00
..
auto-render-spec.js	Remove trailing commas for IE 9 compatibility	2017-01-06 19:06:01 -08:00
auto-render.js	Remove trailing commas for IE 9 compatibility	2017-01-06 19:06:01 -08:00
index.html	[auto-render] Don't stop parsing when one expression fails	2015-04-26 17:04:11 -07:00
Makefile	Add basic auto-render extension	2015-04-01 15:57:10 -07:00
README.md	Provide link to auto-render.min.js in usage example (#522 )	2016-09-17 15:23:26 -07:00
splitAtDelimiters.js	Remove trailing commas for IE 9 compatibility	2017-01-06 19:06:01 -08:00

README.md

Auto-render extension

This is an extension to automatically render all of the math inside of text. It searches all of the text nodes in a given element for the given delimiters, and renders the math in place.

Usage

This extension isn't part of KaTeX proper, so the script should be separately included in the page:

<script src="https://cdnjs.cloudflare.com/ajax/libs/KaTeX/0.6.0/contrib/auto-render.min.js"></script>

Then, call the exposed renderMathInElement function in a script tag before the close body tag:

<body>
  ...
  <script>
    renderMathInElement(document.body);
  </script>
</body>

See index.html for an example.

API

This extension exposes a single function, window.renderMathInElement, with the following API:

function renderMathInElement(elem, options)

elem is an HTML DOM element. The function will recursively search for text nodes inside this element and render the math in them.

options is an optional object argument with the following keys:

delimiters: This is a list of delimiters to look for math. Each delimiter has three properties:
- left: A string which starts the math expression (i.e. the left delimiter).
- right: A string which ends the math expression (i.e. the right delimiter).
- display: A boolean of whether the math in the expression should be rendered in display mode or not.
The default value is:
```
[
  {left: "$$", right: "$$", display: true},
  {left: "\\[", right: "\\]", display: true},
  {left: "\$", right: "\$", display: false}
]
```
ignoredTags: This is a list of DOM node types to ignore when recursing through. The default value is ["script", "noscript", "style", "textarea", "pre", "code"].