Js-002-javascript manipulating common web elements-modifying element properties (example of a button)

Source: Internet
Author: User

This article is a simple example of modifying a BUTTON element property (for example: adding a property, modifying a property, modifying a color style, border style, and so on), and demonstrates JS's basic method of modifying HTML element properties, see. If you have any shortcomings, please correct me and appreciate it!

More than idle statement, this on the code.

The HTML source code is as follows:

1 <HTML>2     <Head>3         <MetaCharSet= ' Utf-8 '>4 5         <title>Js-002-javascript manipulating common web elements-modifying element properties (example of a button)</title>6         <Scripttype= "Text/javascript"src= "Common.js"></Script>7         <Scripttype= "Text/javascript"src= "Test.js"></Script>8 9         <Linkrel= "stylesheet"type= "Text/css"href= "Global.css">Ten     </Head> One          A     <Body> -          <DivID= "button"> -             <h4>Button operation:</h4> the             <Li>var btn = document.getElementById (' button '). getElementsByTagName (' input ') [0]</Li> -             <Li>1. Add attribute: btn.id= "BTN"</Li> -             <Li>2. Add attribute: Btn.setattribute ("name", "Btn_name")</Li> -             <Li>3. Add attribute: Btn.setattribute ("Class", "A_class"), class cannot be added with the first method</Li> +             <Li>4, modify the font color: Btn.style.color = ' red '</Li> -             <Li>5. Modify the Border style: Btn.style.border = ' 3px solid blue '</Li> +             <BR> A  at             <inputtype= "button"value= "JavaScript action Button instance"onclick= "Btn_op ()"> -         </Div> -              -         <Div> -             <BR><BR><BR><BR> -             <ahref= "Http://www.w3school.com.cn/jsref/dom_obj_style.asp"Target= "_blank">HTML DOM Style Object</a> in         </Div> -     </Body> to </HTML>

The following is shown in Chrome:

The corresponding invocation of the JS source code is as follows:

1 //button Action: Add Property2 functionBtn_op () {3     varBTN = document.getElementById (' button '). getElementsByTagName (' input ') [0];4     5Btn.id= "BTN";6Btn.setattribute ("name", "Btn_name");7Btn.setattribute ("Class", "A_class");8     9     //Modify the value of the property, just re-assign the value you want toTenBtn.setattribute ("Class", "a_class-01"); One  ABtn.style.color = ' Red '; -Btn.style.border = ' 3px solid blue '; -}

When you click the button, the page appears as follows:

Other HTML element properties of the modification method and the above are the similarities, the small master can make a further attempt on their own, thank you!

At this point, the js-002-javascript operation of the common web elements of the second-modify element properties (with the button example) successfully completed, I hope this article can give beginners JavaScript you a reference.

Finally, very grateful to the pro-stop, I hope this article can be pro helpful. Warmly welcome the kiss to discuss together and progress together. Thank you so much! ^_^

Js-002-javascript manipulating common web elements-modifying element properties (example of a button)

Related Article

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.