例1.2(CreateP&InputIEFF.html) <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML> <HEAD> .test { background:#0000FF; } <SCRIPT LANGUAGE="JavaScript"> <!-- window.onload=function(){ var para = document.createElement("p"); /*the following statement para.innerH...
letcurrentEffect 然后,createEffect会在调用该函数前设置这个全局变量: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 functioncreateEffect(effect){currentEffect=effecteffect()currentEffect=undefined} 这里最重要的一点是,effect 会被立即调用,并提前设置全局currentEffect。这样我们就可以跟踪 effect 可能调用的...
if(element.removeEventListener) { element.removeEventListener(type,handler,false); }else if(element.detachEvent) { element.detachEvent("on"+type,handler); }else { element["on" +type] = null; } }, getEvent: function(event) { return event ? event : window.event; }, getTarget: function(...
range = document.createRange(); range.selectNode(document.querySelector("#range")); returnValue = range.comparePoint(document.querySelector("#referenceNode"), 0); createContextualFragment(tagString) 将HTML字符串转换为文档片段 参数: tagString: 要转换的HTML字符串。 示例: var tagString = "node"...
介绍:返回该字符串中符合规则的字符 参数:string.match( 正则表达式 ) 返回值:返回字符串中符合规则的字符,存入数组,返回该数组;正则表达式.test() 介绍:判断该字符串中的字符是否符合正则规则 参数:正则表达式.test( 字符串 ) 返回值:布尔值;(true:符合;false:不符合)正则...
element[string]: Id or class of container element. data: Data with which to construct chart. Can be either an object or string. If object: must containlabelsandvalueskeys: newroughViz.Bar({element:'.viz',data: {labels: ['a','b'],values: [10,20]} }) ...
Here,onClickhas a closure that keeps a reference toelement(viaelement.nodeName). By also assigningonClicktoelement.click, the circular reference is created, i.e.,element→onClick→element→onClick→element… Interestingly, even ifelementis removed from the DOM, the circular self-reference above ...
range.selectNode(document.getElementsByTagName("div").item(0));constdocumentFragment = range.createContextualFragment(tagString);document.body.appendChild(documentFragment); 3.7. deleteContents() deleteContents():删除框选的内容。 constrange =document.createRange(); ...
varformId=document.getElementById("form");console.log(formId); 1. 2. 2. 通过document.forms 取得页面中的所有表单元素,然后通过索引来取到对应的form元素,如下代码所示:取得页面第一个form元素; console.log(document.forms[0]); 3. 通过from表单中的name属性来获取,代码如下: ...
container string | false false Appends the tooltip to a specific element. Example: container: 'body'. This option is particularly useful in that it allows you to position the tooltip in the flow of the document near the triggering element - which will prevent the tooltip from floating away fr...