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- What is the weight of pseudo elements?
- The weight of pseudo elements is 0. In CSS, selector weight is used to determine the priority of styles. The higher the weight value, the higher the priority and the style will be applied. This means that no matter where the pseudo-element selector appears in the selector, it has the lowest weight. Even when combined with other selectors, the weight of a pseudo-element selector does not affect the weight of the entire selector. No matter what the weight of other selectors is, the styles of pseudo-element selectors will not be overridden, etc.
- Front-end Q&A 856 2023-10-11 14:02:13
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- Introduction to the MVVM Foundation framework
- The MVVM Foundation framework is an open source MVVM framework used to help developers implement MVVM pattern applications. Main features and functions: 1. Provides the ViewModelBase base class, which is used to inherit all ViewModel classes and is used to implement command binding; 2. Provides the RelayCommand class; 3. Provides the Messenger class to implement the message passing mechanism; 4. Support data binding; 5. Support dependency injection; 6. Improve application testability.
- Front-end Q&A 748 2023-10-11 10:26:43
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- Cinch Framework Tutorial
- Cinch framework usage tutorial: 1. Install Cinch framework; 2. Create ViewModel; 3. Create View; 4. Bind properties and commands; 5. Register service.
- Front-end Q&A 1240 2023-10-11 10:22:58
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- Introduction to the MVVM Helpers framework
- The MVVM Helpers framework is an open source MVVM framework based on .NET Standard, designed to help developers build WPF, UWP and Xamarin applications more easily. It has the characteristics of command binding, dependency injection, view model base class, message center, verification framework and cross-platform. The MVVM Helpers framework provides a series of infrastructure and tools to help developers implement the MVVM pattern, thereby improving the testability, scalability and maintainability of applications.
- Front-end Q&A 1290 2023-10-11 10:19:43
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- Caliburn framework introduction
- Caliburn framework is an open source MVVM framework designed to help developers build WPF, Silverlight and Windows Phone applications more easily. Features include: 1. Command binding, which can bind user operations and background logic; 2. Dependency injection, which can help developers manage and resolve dependencies between components; 3. Automatic view binding; 4. Event aggregation It can help decoupling and communication between different modules; 5. Convention is better than configuration; 6. Supports multiple platforms, etc.
- Front-end Q&A 1303 2023-10-11 10:16:32
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- What is prism framework
- Prism framework is an open source framework for building scalable, modular and testable enterprise applications. It can help developers achieve the following functions: 1. Modularization, which supports splitting the application into multiple modules, each module has its own functions and views; 2. Navigation, which can easily navigate and navigate between different views. Interaction; 3. Dependency injection, which helps developers manage and resolve dependencies between components; 4. Event aggregator; 5. Command binding, which can bind user operations to background logic; 6. Testability, etc. .
- Front-end Q&A 2591 2023-10-11 10:12:43
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- MVVMLight framework advantages and disadvantages
- Advantages: 1. Lightweight; 2. Easy to use; 3. Scalability; 4. Supports multiple platforms; 5. Community support. Disadvantages: 1. Too simple; 2. Incomplete dependency injection; 3. Lack of documentation and tutorials; 4. Not suitable for large projects.
- Front-end Q&A 736 2023-10-11 10:09:31
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- Why is localstorage unsafe?
- The reasons why localstorage is unsafe are unencrypted data, XSS attacks, CERF attacks, capacity limitations, etc. Detailed introduction: 1. Data is not encrypted. Localstorage is a simple key-value pair storage system. It stores data in the user's browser in clear text, which means that anyone can easily access and read the data stored in localstorage. If sensitive information is stored in localstorage, hackers or malicious users can easily obtain this information and so on.
- Front-end Q&A 1512 2023-10-10 17:38:14
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- What functions does localstorage have?
- Localstorage has features such as persistent storage, ease of use, large-capacity storage, cross-browser support, security, and no need for a network connection. Detailed introduction: 1. Persistent storage. The data stored in localstorage is persistent. Even if the user closes the browser or restarts the computer, the data still exists. This makes localstorage very suitable for storing the user's personal settings, preferences and other important data. ; 2. Simple and easy to use, the localstorage API is very simple and easy to use, etc.
- Front-end Q&A 1315 2023-10-10 17:13:23
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- What localstorage can do
- Localstorage provides features such as persistent storage, large-capacity storage, ease of use, and security. Detailed introduction: 1. Persistent storage. The data stored in localstorage is persistent. Even if the user closes the browser or restarts the device, the data will still be retained. This makes localstorage ideal for storing user preferred settings, personal preferences and other important data. Choice; 2. Large-capacity storage. Localstorage provides a large storage capacity, usually 5MB or more, etc.
- Front-end Q&A 619 2023-10-10 17:06:56
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- What is the element box model
- The element box model is an important concept in CSS, used to describe and control the layout and size of HTML elements. It refers to the space occupied by HTML elements when they are rendered on the page, including the content, padding, borders and outer edges of the element. distance. Detailed introduction: 1. The content area is the area where the element displays the actual content, such as text, image or other nested elements. Its size is determined by the width and height attributes of the element; 2. Padding, the padding is the content of the element and The space between borders, which can be controlled via padding properties and more.
- Front-end Q&A 1429 2023-10-10 16:24:56
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- What is the web box model
- The web box model means that in web design, the web page element is regarded as a rectangular box, containing four parts: content, inner margin, border and outer margin. This concept is one of the foundations of CSS and is used to describe and control The layout and style of web elements on the page. Its characteristic is that the width and height of each box are determined by the sum of content, padding, border and margin. It is widely used and can be used to achieve various web page layout and style effects. By adjusting the width, height, padding, border, margin and other properties of the box, different layout effects can be achieved.
- Front-end Q&A 1020 2023-10-10 16:15:13
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- What are the selectors of jquery?
- jquery selectors include element selectors, ID selectors, class selectors, attribute selectors, child element selectors, descendant element selectors, sibling element selectors, filter selectors, form selectors, content selectors, etc. Detailed introduction: 1. Element selector, use the element name to select HTML elements; 2. ID selector, use the ID attribute of the element to select HTML elements; 3. Class selector, use the element class name to select HTML elements; 4. Attribute selectors, use element attributes to select HTML elements and more.
- Front-end Q&A 1090 2023-10-10 14:12:04
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- What are the values of float attribute?
- The float attribute values include left, right, none, inherit, clearinline-start and inline-end. Detailed introduction: 1. left, the element floats to the left, that is, the element will be as close to the left side of the container as possible, and other elements will surround it on the right side; 2. right, the element floats to the right, that is, the element will be as close to the container as possible On the right, other elements will surround it on the left; 3. The default value of none, the elements will not float, and will be arranged according to the normal document flow, etc.
- Front-end Q&A 1478 2023-10-10 14:03:35
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- What are the standardized layouts of the web?
- Web standardized layout includes HTML semantics, CSS layout, responsive design, image optimization, font selection and SEO optimization and other technologies. Detailed description: 1. HTML semantics, use appropriate HTML tags to describe the structure and meaning of web page content; 2. CSS layout, use cascading style sheets to control the layout and style of web pages; 3. Responsive design, according to the user's device and screen size, automatically adjust the layout and style of web pages to provide the best user experience; 4. Image optimization can reduce the loading time of web pages, improve user experience, etc.
- Front-end Q&A 1202 2023-10-10 14:01:23
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