与
删除节点一样,替换节点也需要先获取父节点,然后通过父节点替换子节点。
1. 获取父节点
2. 创建子节点
3. 获取被替换子节点
4. 通过replaceChild进行替换
注:
replaceChild 第一个参数是保留的节点,第二个参数是被替换的节点
");
window.frames["iframe_show1187"].document.write(decodeHtml($("textarea#stepcodeTextarea1187").val()));
window.frames["iframe_show1187"].document.close();
$(window.frames["iframe_show1187"]).load(function(){
$("#iframe_show1187").height($("#iframe_show1187").contents().find("body").height()+showittryitheight);
});
$("#iframe_show1187").height($("#iframe_show1187").contents().find("body").height()+showittryitheight);
setTimeout(function(){
},500);
});
<div id="parentDiv">
<div id="d1">第一个div</div>
<div id="d2">第二个div</div>
<div id="d3">第三个div</div>
</div>
<script>
function replaceDiv(){
var d4= document.createElement("div");
var text = document.createTextNode("第四个div");
d4.appendChild(text);
var d3 = document.getElementById("d3");
var parentDiv = document.getElementById("parentDiv");
parentDiv.replaceChild(d4,d3);
}
</script>
<button onclick="replaceDiv()">替换第3个div</button>
<div id="parentDiv">
<div id="d1">第一个div</div>
<div id="d2">第二个div</div>
<div id="d3">第三个div</div>
</div>
<script>
function replaceDiv(){
var d4= document.createElement("div");
var text = document.createTextNode("第四个div");
d4.appendChild(text);
var d3 = document.getElementById("d3");
var parentDiv = document.getElementById("parentDiv");
parentDiv.replaceChild(d4,d3);
}
</script>
<button onclick="replaceDiv()">替换第3个div</button>
");
window.frames["iframe1187"].document.write(decodeHtml(code1187));
window.frames["iframe1187"].document.close();
//load和下面的非load必需并存,因为如果代码用到了jquery就必须使用load的方式
$(window.frames["iframe1187"]).load(function(){
$("#iframe1187").height($("#iframe1187").contents().find("body").height()+showittryitheight);
});
$("#iframe1187").height($("#iframe1187").contents().find("body").height()+showittryitheight);
alreadyWriteCode1187 = code1187;
$("#rendering1187").hide();
$("#rendered1187").show();
}
var tRereshRetry2DemoPanel1187 = setInterval(rereshRetry2DemoPanel1187,1000);
var binded1187 = false;
$("textarea#stepcodeTextarea1187").keyup(function(){
if(!binded1187){
$(window).bind('beforeunload',function(){
binded1187 = true;
return "xxxx";
});
}
var newCode = $(this).val()
code1187 = newCode;
/*below code is replaced by function rereshRetry2DemoPanel()*/
// if(code1187!=newCode){
// window.frames["iframe1187"].document.write("
");
// window.frames["iframe1187"].document.write(decodeHtml($("textarea#stepcodeTextarea1187").val()));
// window.frames["iframe1187"].document.close();
// $(window.frames["iframe1187"]).load(function(){
// $("#iframe1187").height($("#iframe1187").contents().find("body").height()+showittryitheight);
// });
// code1187 = newCode;
// }
});
$(".tryButton1187").click(function(){
$("#tryDiv1187").show();
$("#stepcodeTextarea1187").focus();
$("#stepcodeTextarea1187").height(200);
$("#iframe1187").height(0);
window.frames["iframe1187"].document.write("
");
window.frames["iframe1187"].document.write(decodeHtml($("textarea#stepcodeTextarea1187").val()));
window.frames["iframe1187"].document.close();
//load和下面的非load必需并存,因为如果代码用到了jquery就必须使用load的方式
$(window.frames["iframe1187"]).load(function(){
$("#iframe1187").height($("#iframe1187").contents().find("body").height()+showittryitheight);
});
$("#iframe1187").height($("#iframe1187").contents().find("body").height()+showittryitheight);
this.scrollIntoView(true);
editor1187.focus();
editor1187.setSize(null, "250");
$("#rendering1187").hide();
$("#rendered1187").hide();
});
var mixedMode = {
name: "htmlmixed",
scriptTypes: [{matches: /\/x-handlebars-template|\/x-mustache/i,
mode: null},
{matches: /(text|application)\/(x-)?vb(a|script)/i,
mode: "vbscript"}]
};
var editor1187 = CodeMirror.fromTextArea(document.getElementById("stepcodeTextarea1187"), {
lineNumbers: true,
styleActiveLine: true,
matchBrackets: true,
mode:"text/html",
theme:"eclipse",
selectionPointer: true,
lineWrapping: true,
extraKeys: {
"Alt-/": "autocomplete",
"Ctrl-F": "findPersistent",
"F8": function(cm) {
cm.setOption("fullScreen", !cm.getOption("fullScreen"));
},
"Esc": function(cm) {
if (cm.getOption("fullScreen")) cm.setOption("fullScreen", false);
}
}
});
editor1187.on("change",function(doc){
if(!binded1187){
$(window).bind('beforeunload',function(){
binded1187 = true;
return "xxxx";
});
}
var newCode = doc.getValue();
code1187 = newCode;
$("textarea#stepcodeTextarea1187").val(newCode);
if(alreadyWriteCode1187!=code1187){
lastModifedTime1187 = new Date().getTime();
$("#rendering1187").show();
$("#rendered1187").hide();
}
// alert(doc.getValue());
});
$(".CodeMirror").addClass("form-control");
// var editor1187 = CodeMirror.fromTextArea(, {
// lineNumbers: true,
// styleActiveLine: true,
// matchBrackets: true,
// theme:"eclipse",
// });
editor1187.on("change",function(doc){
// alert(doc.getValue());
});
$("#tryDiv1187").hide();
});
$("div.codemirrorTips span").addClass("glyphicon glyphicon-asterisk");
1. 双击选中单词
2. 三击选中整行
3. CTRL+F 查找
4. F8 全屏编辑,再次点击恢复
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