代码语言:javascript 复制 functionsetStyleHeaderSiblings(){if(!checkCompatibility())return;//check compatibilityvarheads=document.getElementsByTagName("h1");varele;//defines a element for receive;for(vari=0;i<heads.length;i++){ele=getNextElement(heads[i].nextSibling);ele.className="change";} 假...
var check = oDiv.firstChild.getElementsByTagName("i")[0]; check.onclick = function() { // console.log(check.className); if (check.className == "i_check i_acity") { check.classList.remove("i_acity"); } else { check.classList.add("i_acity"); } getAmount(); } 1. 2. 3....
-- function testA() { alert("haha"); } //标签的 onclick事件 function check() { //获取 id 和 class 名称 alert("id = "+document.all["myObj"].id+"; className="+document.all["myObj"].className); } // --> 点击文字 sample //在此 html 文件的同一目录下的 a.htc 文件...
The most recent technique, to be popularized, was the use of XPath to find elements by classname. The implementation is generally simple: Building a single expressions and letting the XPath engine traverse through the document, finding all the relevant elements. I’ve chosen some implementations th...
.className = 'form-control error'; const small = formControl.querySelector('small'); small.innerText = message; } // 显示成功信息 function showSuccess(input) { const formControl = input.parentElement; formControl.className = 'form-control success'; } // 验证邮箱格式 function checkEmail(...
returnstrueifobjis an object representing the constructor and static members of a Java class, as obtained (for example) byJava.type() returnsfalsefor all other arguments Java.typeName(obj) returns the JavaClassname ofobjwhenobjrepresents a Java type (isType(obj) === true) or JavaClassinstance...
ths.className ='gg'; } } 5、 选择栏 <!DOCTYPE html> Title 序号 用户号 年龄 <
Usingsplit(), you can convert the space-separated list of classes (that you get via theElement.classNameproperty) into an array. After that you can useArray.prototype.includes()(orArray.prototype.indexOf()) to check if the resulting array contains the specified class name. For example:...
It's a JavaScript convention to use camel case for variable names with more than one word; for example, the variable className.Console messageAs a web developer, you can create hidden messages that aren't visible on your webpage, but that you can read in the Developer Tools in the ...
var elems = document.getElementsByClassName("classname"); or use the Selectors API to get the class-named items: var elems = document.querySelectorAll(".classname"); Discussion The method, getElementsByClassName, goes beyond one element type to find all elements that share the same class value...