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1.1. The attr () method passes a parameter to get the passed property value, and if the caller is a collection, the property value of the first object in the collection is returned two parameters are used to set the property value, and if the caller is a collection, the property value of each object in the collection is set, if the property does not exist, The property is automatically incremented
1.2. Removeattr () Method: pass a parameter that removes the properties of all found DOM objects
1.3. Prop () Method: Usage and action are consistent with the attr () method: When used as a Boolean type attribute (such as: Checked property), gets the True/false value and gets the property name using the attr () method/undefined
1.4. Removeprop () Method: usage and function consistent with removeattr () method
1.5. Note:
A. Incoming property names and property values are passed in as strings;
B. The writing of attribute names and property values is exactly the same as in HTML tags;
C. Setting the same property repeatedly causes overrides.
2. Operation Class Property related methods2.1, AddClass (CLASS|FN) Add Class
2.2, Removeclass ([CLASS|FN]) Delete class
2.3, Toggleclass (CLASS|FN[,SW]) switch class: There is the deletion, no added
2.4. Note:
A. When working with multiple classes at the same time, multiple class names are separated by a space
B. With attr (class,classname1[className2 ...]) The difference:
Using the Attr method to set the Class property is a one-time override setting, and the newly set class overrides the original class and uses the above 3 methods to manipulate the class properties without affecting the original other classes.
3. Content/Text operation methodHTML (), text (), Val (): Get without arguments, pass in the value you need to set as a parameter
4. Comprehensive case<!DOCTYPE HTML><HTML><Head><MetaCharSet= "Utf-8"><title></title> <style>. tored{width:200px;Height:30px;background:Red; }. Togreen{width:200px;Height:30px;background:Green; }#div1{width:250px;Height:30px;background:Red; }#ddiv1{width:200px;Height:30px;background:Green; } </style> <Scriptsrc= "Js/jquery.js"></Script></Head><Body><DivID= "Div1">Dot I set my id property to Ddiv1</Div><DivID= "Div2"></Div><ButtonID= "BTN1">Setting the Div2style Property</Button><ButtonID= "BTN2">Remove Div2style Property</Button><DivID= "Div3"class= "Tored">Click I switch class</Div><Script> $(function(){ $("#div1"). Click (function(){ $( This). attr ("txt1","txt1 Effective"); $( This). attr ("ID","Ddiv1"); $( This). Text ("I'm ddiv1 now."); }); $("#btn1"). Click (function(){ $("#div2"). attr ("style","width:300px;height:30px;background:red;"); }); $("#btn2"). Click (function(){ $("#div2"). Removeattr ("style"); }); $("#div3"). Click (function(){ $( This). Toggleclass ("tored Togreen"); //$ (this). Toggleclass ("tored"). Toggleclass ("Togreen"); Equivalent }); });</Script></Body></HTML>
Methods for jquery Operation Properties
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