The prop-types third-party library is used to detect the types of variables in the props of the component, and the prop-typesprops
1. Introduction-JavaScript is a bear child
1.1 For JSer, js is free, but there are also a lot of troubles. Javascript is often such a bear child. Many times it is not as well-behaved as C and java. So it brings us a lot of troubles
This section mainly discusses the use of
The vue-prop parent component transmits values to child components, and the vue-prop component transmits values.
Vue-prop is used when the parent component transmits data to the child component.
For example, the sub-component is
Child. vue
Template: '
We specify a data name in the child component: msg
Write in parent component
In this way, we can see msg
Source: http://www.itechzero.com/dns-hijacking-dns-pollution-introduction-and-public-dns-recommend.htmlWe know that some network operators for some purposes, some of the DNS operation, resulting in the use of the ISP's normal Internet settings cannot obtain the correct IP address through the domain name. Common means a
This example describes the use of attr () and prop () functions in jquery. Share to everyone for your reference, specific as follows:
attr () Method of jquery
jquery uses the attr () method to get and set element attributes, attr is the abbreviation for attribute (attributes), often used in jquery DOM operations attr (), attr () has 4 expressions.
1. attr (property name)//Get the value of the property (get the property value of the first matching e
JQuery. prop () Usage Details, jqueryprop
The prop () function is used to set or return the attribute values of the elements matching the current jQuery object.
This function is a jQuery object (instance ). To delete attributes of a DOM element, use the removeProp () function.
Syntax
This function is added to jQuery 1.6. The prop () function has the following usa
. attr (), this method has been in existence since jq1.0, the official document writes the function is reads/writes the DOM attribute value, actually before 1.6 sometimes is attribute, sometimes is the property.. Prop (), this method jq1.6 introduced, reads/writes the DOM's property.. Data (), which is introduced in jq1.2.3 to read/store arbitrary values on the JQ object corresponding to the DOM element.Performance comparisons,.
Compared to the Attr,prop is 1.6.1 new, both from the Chinese meaning of understanding, are to get/set properties of the method (attributes and properties). Only the. attr () method used in window or document does not work well before jQuery1.6 because attributes is not available in window and document. Prop was born.
Since we want to know the difference between them, it is best to look at their source cod
Today, when using the
I am optimistic about the perfect, wood problem, but I found in the Safari browser, does not work!! A closer look at the discovery that in the Safari browser, the property is indeed set to succeed, and the value=2 is indeed the
1.attr (): Gets the value of the property of the first element in the matching element collection or sets one or more properties for each matching element. .attr (AttributeName) .attr (AttributeName)
.attr (AttributeName, value) .at
. attr (), this method has been in existence since jq1.0, the official document writes the function is reads/writes the DOM attribute value, actually before 1.6 sometimes is attribute, sometimes is the property.. Prop (), this method jq1.6 introduced, reads/writes the DOM's property.. Data (), which is introduced in jq1.2.3 to read/store arbitrary values on the JQ object corresponding to the DOM element. Performance comparisons,.
Recently in the project has such a requirement, the user can choose the coupon when the order, but also can cancel the selection, and can select, Cancel.This is a typical input tag checked feature, the blogger uses the radio element to implement this requirement, but the coupon can only be selected, cannot be unchecked, and multiple actions are always selected.Online search, see a lot of posts, blog, the article describes the use of jquery prop method
1.attr (): The default is to save the browser's initial value prop () Save the updated value2. The following is the first usage, but the. attr () method can run in all attributes cases.Note: The properties of some DOM elements are also listed below, but only run in the new. Prop () methodThe. Prop () method should be used to handle Boolean attributes/properties a
Compared with attr, prop is new only after 1.6.1. Both of them are based on Chinese meaning and are used to obtain/set attributes (attributes and properties ). However, the. attr () method used in window or document cannot run normally before jQuery1.6, because attributes cannot exist in window and document. Prop came into being.
Since we want to know the differences between them, it is best to look at thei
.prop () 1,. Prop (PropertyName) Gets the value 2,. Prop (PropertyName, value) that matches the property of the first element in the collection. Prop (map). Prop ( PropertyName, function (index, oldpropertyvalue) sets one or more properties .
Android property build. Prop Generation Process
This part is onlineArticleGood analysis:
Http://blog.csdn.net/thl789/article/details/7014300 reprinted over
Android build. the prop file is a variety of properties (LCD density/Language/Compilation Time, etc.) collected during Android compilation .), after compilation, the file is generated in the out/target/product/
During Android runtime, you can
them. attr (),. Prop () and. Data (), there are also sources behind these three. JQuery. attr (). Prop ().data ()Let's take a look at the explanations of the three methods:. attr (), this method has been in existence since jq1.0, the role of official document writing is to read/write the DOM attribute value, in fact, before 1.6 is sometimes attribute, and sometimes property:
jQuery1.6 adds a new prop method that looks and uses the same as the attr method, what is the difference between these two methods? This is from the HTML attribute and property differences, attr and prop is the abbreviation for these two things.Attribute and propertyAttribute and property can be translated into attributes, in order to differentiate, these two words are usually translated into attributes and
DNS server: Describes DNS service principles, installation, master-slave configuration, and dns master-slave configuration.
DNS server: Describes DNS service principles, installation, and master-slave configuration.
1. Introduction to DN
Web site Deployment ~windows Server | Local Deployment Http://www.cnblogs.com/dunitian/p/4822808.html#iisDNS server deployment is not clear can see an article: http://www.cnblogs.com/dunitian/p/5439816.htmlIn-house PCs, basically DNS are internal servers (because there are some internal sites and systems)So how does the DNS server set up to get the company PC to access the extranet?Just take the transponder
1. prop (propertyName)Obtains the Property value of the first element in the matching set.2,. Prop (propertyName, value). Prop (map). Prop (propertyName, function (index, oldPropertyValue ))Set one or more attributes for the Matching Element SetDifference between. prop () an
Difference between attr () and prop () in Jquery, jqueryattr
In jQuery, both the attr () and prop () functions are used to set or obtain specified attributes. Their Parameters and usage are almost identical. However, these two functions have different functions. The differences between the two functions are described in detail below.
1. Different operation objects
Attr is the abbreviation of attribute, and
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