Comparison of JS and jQuery examples
This article mainly shares with you the comparison of JS and jQuery examples, mainly in the form of code. I hope it can help everyone.
DOM Attribute
// jQuery el.html() el.text() //取得所有匹配元素的内容 el.val() //获得匹配元素的当前值// JavaScript el.innerHTML() el.innerText() //老版本火狐不兼容 el.textContent() //老版本IE不兼容
DOM Query
1.获取页面所有p元素 // jQuery $("p") // JavaScript document.getElementsByTagName("p"); // IE4 + // Elements,表示此方法返回的是元素集合,有length属性,样式操作需配合索引 document.getElementsByTagName("p")[0].style.color = "blue";2.根据名称获取页面DOM // jQuery $("p[name = 'value']") // JavaScript document.getElementsByName("name")3.根据ID获取DOM节点 // jQuery $("#idName") // JavaScript document.getElementById("idName")4.根据类名获取DOM节点 // jQuery $(".className") // JavaScript document.getElementByClassName() //IE8 + document.querySelectorAll(".className") //返回元素集合 document.getElementsByClassName("className")5.根据选择器返回第一个匹配的节点(selectors CSS选择器,el DOM/元素对象) // jQuery $("selectors:first") // JavaScript, 非实时 document.querySelector("selectors") document.querySelectorAll("selectors")
Operation Class
1.为DOM元素添加类 // jQuery $("selector").addClass("className"); // JavaScript el.classList.add("className");2.删除类 // jQuery $("selector").removeClass("className"); // JavaScript el.classList.remove("className");3.判断是否含有类,返回布尔值 true / false // jQuery $("selector").hasClass("classNames") // JavaScript el.classList.contains("classNames")
DOM Change
1.尾部追加DOM元素(parent 父元素 ,child 子元素) // jQuery $("parent").append($("child")); // JavaScript var child = document.createElement("span"); //创建元素节点 var child = document.createTextNode("text"); //创建文本节点 child.appendChild(document.createTextNode("content")); //填充节点内容 parent.appendChild(child) //将node元素追加到尾部2.头部追加DOM元素 // jQuery $("parent").prepend($("child")); // JavaScript,剪切操作 appendChild() parent.insertBefore(a,b) //在 b 之前插入 a3.删除DOM元素 // jQuery $("child").remove(); // JavaScript child.remove() //彻底删除 el.removeChild(child); //删除child元素,返回被删元素,暂存对象3.替换DOM元素 // jQuery el.replaceWith("<b>Paragraph</b>") // JavaScript el.replaceChild(new,old)
Add style or attribute
1.添加CSS样式 // jQuery $("selector").css("color","#FFF"); //设置单个属性值 $("selector").css({"color":"#FFF","border":"1px",...}); //设置多个属性值 // JavaScript el.style.css="#FFF";2.获取CSS值 // jQuery $("selector").css("color"); //获取属性值 // JavaScript //只能获取内嵌CSS属性中的值(style=”…”),而无法获取外部引用CSS的属性 el.style.color; //返回RGB值3.添加属性 // jQuery $("selector").attr("id","main"); //设置单个属性值 $("selector").attr({"id":"main","name":"main",...}); //设置多个属性值 /* attr("attributeName",fn(v1,v2))的回调函数, v1为被选择元素的索引(index),v2为属性的旧值(oldvalue),返回属性新值 */ $("selector").attr("attributeName",function(index,oldvalue){ return }); //每次点击按钮,a元素的word自增1 //<a world = "1"></a> $("button").click(function(){ $("a").attr("world",function(index,v){return ~~v+1;}); }) // JavaScript(attributeName 属性名,attributeValue 属性值) el.setAttribute("attributeName","attributeValue");4.获取节点属性 // jQuery $("selector").attr("attributeName"); // JavaScript el.getAttribute("attributeName");5.移除节点属性 // jQuery $("selector").removeAttr("attributeName"); // JavaScript el.removeAttribute("attributename");
Event event
1.事件绑定(eventName 事件类型,fn(){} 事件处理函数) // jQuery $("selector").on("eventName", fn(){}); // JavaScript el.addEventListener("eventName", fn(){});2.解绑事件 // jQuery $("selector").on("eventName", fn(){}); // JavaScript el.removeEventListener("eventName", fn(){});
Show in Hide
// jQuery $("selector").show(); //显示 $("selector").hide(); //隐藏// JavaScript el.style.display = ''; //显示 el.style.display = 'none'; //隐藏
Page loading initialization
// jQuery $(function(){ //方式一 }) $(document).ready(function(){ //方式二 }) $().ready(function(){ //$() 函数 默认为 $(document) //方式二 }) (function($){ //方式三 - 闭包 })(jQuery)// JavaScript window.onload = function(){ //code }
DOM attributes
// jQuery el.html() el.text() //取得所有匹配元素的内容 el.val() //获得匹配元素的当前值// JavaScript el.innerHTML() el.innerText() //老版本火狐不兼容 el.textContent() //老版本IE不兼容
DOM Query
1.获取页面所有p元素 // jQuery $("p") // JavaScript document.getElementsByTagName("p"); // IE4 + // Elements,表示此方法返回的是元素集合,有length属性,样式操作需配合索引 document.getElementsByTagName("p")[0].style.color = "blue";2.根据名称获取页面DOM // jQuery $("p[name = 'value']") // JavaScript document.getElementsByName("name")3.根据ID获取DOM节点 // jQuery $("#idName") // JavaScript document.getElementById("idName")4.根据类名获取DOM节点 // jQuery $(".className") // JavaScript document.getElementByClassName() //IE8 + document.querySelectorAll(".className") //返回元素集合 document.getElementsByClassName("className")5.根据选择器返回第一个匹配的节点(selectors CSS选择器,el DOM/元素对象) // jQuery $("selectors:first") // JavaScript, 非实时 document.querySelector("selectors") document.querySelectorAll("selectors")
Operation Class
1.为DOM元素添加类 // jQuery $("selector").addClass("className"); // JavaScript el.classList.add("className");2.删除类 // jQuery $("selector").removeClass("className"); // JavaScript el.classList.remove("className");3.判断是否含有类,返回布尔值 true / false // jQuery $("selector").hasClass("classNames") // JavaScript el.classList.contains("classNames")
DOM Change
1.尾部追加DOM元素(parent 父元素 ,child 子元素) // jQuery $("parent").append($("child")); // JavaScript var child = document.createElement("span"); //创建元素节点 var child = document.createTextNode("text"); //创建文本节点 child.appendChild(document.createTextNode("content")); //填充节点内容 parent.appendChild(child) //将node元素追加到尾部2.头部追加DOM元素 // jQuery $("parent").prepend($("child")); // JavaScript,剪切操作 appendChild() parent.insertBefore(a,b) //在 b 之前插入 a3.删除DOM元素 // jQuery $("child").remove(); // JavaScript child.remove() //彻底删除 el.removeChild(child); //删除child元素,返回被删元素,暂存对象3.替换DOM元素 // jQuery el.replaceWith("<b>Paragraph</b>") // JavaScript el.replaceChild(new,old)
Add Style or attribute
1.添加CSS样式 // jQuery $("selector").css("color","#FFF"); //设置单个属性值 $("selector").css({"color":"#FFF","border":"1px",...}); //设置多个属性值 // JavaScript el.style.css="#FFF";2.获取CSS值 // jQuery $("selector").css("color"); //获取属性值 // JavaScript //只能获取内嵌CSS属性中的值(style=”…”),而无法获取外部引用CSS的属性 el.style.color; //返回RGB值3.添加属性 // jQuery $("selector").attr("id","main"); //设置单个属性值 $("selector").attr({"id":"main","name":"main",...}); //设置多个属性值 /* attr("attributeName",fn(v1,v2))的回调函数, v1为被选择元素的索引(index),v2为属性的旧值(oldvalue),返回属性新值 */ $("selector").attr("attributeName",function(index,oldvalue){ return }); //每次点击按钮,a元素的word自增1 //<a world = "1"></a> $("button").click(function(){ $("a").attr("world",function(index,v){return ~~v+1;}); }) // JavaScript(attributeName 属性名,attributeValue 属性值) el.setAttribute("attributeName","attributeValue");4.获取节点属性 // jQuery $("selector").attr("attributeName"); // JavaScript el.getAttribute("attributeName");5.移除节点属性 // jQuery $("selector").removeAttr("attributeName"); // JavaScript el.removeAttribute("attributename");
Event event
1.事件绑定(eventName 事件类型,fn(){} 事件处理函数) // jQuery $("selector").on("eventName", fn(){}); // JavaScript el.addEventListener("eventName", fn(){});2.解绑事件 // jQuery $("selector").on("eventName", fn(){}); // JavaScript el.removeEventListener("eventName", fn(){});
Show on hidden
// jQuery $("selector").show(); //显示 $("selector").hide(); //隐藏// JavaScript el.style.display = ''; //显示 el.style.display = 'none'; //隐藏
Page loading initialization
// jQuery $(function(){ //方式一 }) $(document).ready(function(){ //方式二 }) $().ready(function(){ //$() 函数 默认为 $(document) //方式二 }) (function($){ //方式三 - 闭包 })(jQuery)// JavaScript window.onload = function(){ //code }
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