实时显示mathjax输出 [英] Display mathjax output in realtime
本文介绍了实时显示mathjax输出的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
如何在键入时如何修改此mathjax示例以进行实时预览?现在，它仅在按Enter键后显示结果.我想对其进行调整，使其类似于在输入问题时stackoverflow/math.stackexchange显示预览的方式.
How do I modify this mathjax example to live preview while I type? Right now it only displays result after I have pressed enter. I would like to tweak it so that it works similar to how stackoverflow/math.stackexchange shows the preview when typing a question.
<html>
<head>
<title>MathJax Dynamic Math Test Page</title>
<script type="text/x-mathjax-config">
MathJax.Hub.Config({
tex2jax: {
inlineMath: [["$","$"],["\\(","\\)"]]
}
});
</script>
<script type="text/javascript"
src="http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS_HTML-full">
</script>
</head>
<body>
<script>
//
// Use a closure to hide the local variables from the
// global namespace
//
(function () {
var QUEUE = MathJax.Hub.queue; // shorthand for the queue
var math = null; // the element jax for the math output.
//
// Get the element jax when MathJax has produced it.
//
QUEUE.Push(function () {
math = MathJax.Hub.getAllJax("MathOutput")[0];
});
//
// The onchange event handler that typesets the
// math entered by the user
//
window.UpdateMath = function (TeX) {
QUEUE.Push(["Text",math,"\\displaystyle{"+TeX+"}"]);
}
})();
</script>
Type some TeX code:
<input id="MathInput" size="50" onchange="UpdateMath(this.value)" />
<p>
<div id="MathOutput">
You typed: ${}$
</div>
</body>
</html>
推荐答案
而不是使用onchange，请尝试使用onkeypress或onkeyup.
Instead of using onchange try onkeypress or onkeyup.
onchange仅在您离开该字段时触发，但其他(显然)是在每次击键时发生的.
onchange is only triggered when you leave the field, but the others (obviously) happen with each key-stroke.
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