jquery Basic Usage

Get started with jquery selector:

①id How to use selectors:<input id= "goto" value= "goto Beijing" ></input>Console.info ($ ("#goto"). Val ());②name selector:<input name= "goto" value= "Goto Xian" ></input>Console.info ($ ("Input[name= ' Goto ']"). Val ());③ Property<input type= "image" Id= "IMGs" >Set src Property$ ("#imgs"). attr ({src: "jquery/tulips.jpg", alt: "Picture"}); ④ Setting the value of input<input name= "Go" type= "Texarea" value= "333" >$ ("Input[name= ' Go"). Val ("Go to Beijing Ba"); ⑤ Set the Disable property of the checkbox:<input type= "checkbox" disabled= "Disabled" id= "Remove"/> enabledcancel out the disabled property:$ ("#remove"). Removeattr ("Disabled");⑥checkbox Properties of checked:<input type= "checkbox" disabled= "Disabled" id= "remove" value= "0" checked= ""/> enabledif ($ ("#remove"). Val () ==1) {$ ("#remove"). attr ("Checked", "true");}else if ($ ("#remove"). Val () ==0) {$ ("#remove"). Removeattr ("checked");   }determines whether the value is selected based on its values. ⑦ Tools:if ($.browser.msie) {alert ("This is ie!");}to determine the type of browser:

Safari

Opera

Msie

Mozilla

Available values.

⑧ to cancel the start and end of a string:

$.trim("  hello, how are you?  ");

jquery Basic Usage