Home > Developer > Web Develop
$ ("P"). Text () $ ("P"). HTML () $ (": CheckBox"). Val ()
$ (". Test"). attr ("Alex") $ (". Test"). attr ("Alex", "SB")
$ (". Test"). attr ("Checked", "checked") $ (": CheckBox"). Removeattr ("checked")
$ (". Test"). Prop ("checked", true)
$ (". Test"). AddClass ("Hide")
<body> <input id= ' ck ' type= "checkbox" School= "Peking" ></body><script src= "jquery-3.2.1.js The ></script>//attr represents a custom property, a parameter bid property, 2 parameters representing the parameter and a parameter value of $ ("#ck"). attr ("Checked", "true"); Add the attribute checked$ ("#ck"). Removeattr ("checked"); Canceling the property checked in JQ3, the cancellation attribute cannot be used with attr ("Checked", "false"), and the intrinsic property "remove//and Prop" ("#ck") must be represented with selected checked. Prop ("Checked", true); $ ("#ck"). Prop ("checked", false); Note here that the Boolean value is not quoted, the cancellation attribute in JQ3 cannot be removed, the unquoted boolean value must be used </script>Initial value:
Modified with prop: custom property modification failed, fixed property modification succeeded [there is a attributes collection inside, the setting success or not is related]
Modify with attr [at this time id=xxx]:attr can be modified successfully [internal has 2 states, true and false, custom default undefied]
To summarize:
Document processingJQ3: The cancellation of the attr must remove; Prop the use of unquoted boolean parameters
intrinsic properties [select,checked] with prop; Custom Attributes with attr
Insert $ ("#c1") internally. Append ("<b>hello</b>") $ ("P"). AppendTo ("div")
Prepend () prependto ()
external Insert before () insertbefore () after InsertAfter ()
ReplaceWith () Remove () empty () Clone ()
To take a value action:
<! DOCTYPE html>Direct insert for parent-child class:
<! DOCTYPE html>Deletion of file operations:
Remove (): Delete this tab and the contents
Empty (): The content is only the case, but the label is retained
jquery Event Binding Supplemental delegate
Event Bindings:$ (' li '). Click (function () { //Method one}) $ (' Li '). On (' click ', Function () { //Method two})//jquery-based delegate binding $ (' TD '). ON (' Click ', '. Td-delete ', function () { $ ('. Remove,. Shade '). Removeclass (' Hide ')})"More References" http://jquery.cuishifeng.cn/ready.html
Operation under 1.DOM
2. jquery operation [removed on onclick ()]
Operation "Review" under the DOM:
<! DOCTYPE html>jquery Method Review: Implementing CSS styles:
<! DOCTYPE html>OnLoad under jquery ()
Cancel event: Unload ()
<! DOCTYPE html>Page Loading of jquery
Ready (FN)
Event Bindings for jquery: Click (), bind (), on (), and other event-bound operations
Cancel event: Off (), etc.;
<! DOCTYPE html>The callback function of jquery:<! DOCTYPE html>How to extend jquery:Custom extensions [jquery calls]
custom extensions [tag invocation]
The extension of the private domain [the custom function is placed inside a function to make calls to ensure that internal variables are not called externally], variables are only inside the function ha ~
<! DOCTYPE html>Use of For loops in jqueryUse of the For loop in jquery:
1. Array, use of key-value pairs
2. Value of the collection
<script src= "Jquery-3.2.1.js" ></script><script> //For loop: Array, json key-value li = [ 1,2,3,4,5,6,7]; KV = {name: "Hello", Value: "World"}; $.each (Kv,function (key, value) { console.log (key,value); }) </script>For loop Collection printing: "Note $ symbol"
<! DOCTYPE html>jquery Learning---jquery deep learning
Start building with 50+ products and up to 12 months usage for Elastic Compute Service
1 on 1 presale consultation
24/7 Technical Support 6 Free Tickets per Quarter Faster Response
Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.
A comprehensive suite of global cloud computing services to power your business
Payment Methods We Support
