Stack Overflow如何反映您正在键入的内容？

Question

现在，当我输入时，编辑器下面有预览。我想做类似的事情。 Stack Overflow如何做到这一点？

Answer 1

他们使用名为WMD Markdown Editor.

的HTML编辑器

Answer 2

$(function(){
    // whenever the text in the editor box changes:
    $("#editorTextArea").change(function(){
        // add the text to the preview box below
        // this certainly involves some formatting/marking up of the text
        // but this is good enough for illustrative purposes
        $("#previewBox").val(this.value);
    });
});