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，使其类似于在键入问题时stackoverflow / math.stackexchange显示预览的方式。
<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>
最佳答案
不要使用onchange，而是尝试onkeypress或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。