jQuery basic selector

What is a selector

The condition used to obtain various element node objects on the page is the selector.

document.getElementById()

document.getElementsByTagName();

document.getElementsByName();

Basic selector

• $('#id attribute value') ----------->document.getElementById()

• $('tag tag name')----------->document.getElementsByTagName();

• $('. class attribute value') class attribute value selector

• ##$('*') Wildcard selector

• $('s1,s2, s3') Union selector

        
  
基本选择器(灵感来源于css样式选择器)
 
 
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