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- The difference and connection between java and javascript
- The differences between Java and JavaScript: 1. Type system and compilation method; 2. Application fields and running environment; 3. Syntax and programming style. There are also certain connections and complementarities between them, allowing these two languages to exert their respective advantages in different fields and scenarios. For programmers, understanding and mastering the characteristics and usage of these two languages will help them better cope with various complex programming needs.
- Front-end Q&A 1165 2024-03-22 16:53:53
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- Angular vs React: Which to choose for front-end in 2024
- In the field of front-end development, Angular and React are the two giants that continue to spark debate. Angular is a mature framework that provides structure and comprehensive tooling, while React is a library focused on UI component creation. This article provides an in-depth comparison of Angular and React, analyzing their advantages, differences, and applicable scenarios. By understanding the unique functional and technical features of these frameworks, developers can make informed choices based on the specific requirements of their projects.
- Front-end Q&A 1319 2024-03-20 13:56:57
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- vue references js files
- The methods for vue to reference js files: 1. Global reference; 2. Local reference. Detailed introduction: 1. Global reference, if you want to use a certain JS file in the entire Vue application, you can directly reference it in main.js; 2. Local reference, if you only want to use it in a specific Vue component JS files can be introduced directly in the component.
- Front-end Q&A 879 2024-03-11 17:42:26
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- How to jump with parameters in vue.js
- The method of jump with parameters in vue.js: 1. Define the route; 2. Use the routing parameters in the component; 3. Make the jump with parameters.
- Front-end Q&A 1316 2024-03-11 17:36:09
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- Why does vue.js report an error?
- Reasons for errors in vue.js: 1. Syntax error; 2. Improper use of components; 3. Data binding issues; 4. Improper use of life cycle hooks; 5. Plug-in or dependency issues; 6. Routing configuration errors; 7. Asynchronous operations Improper handling; 8. Template compilation errors; 9. Project configuration issues; 10. Browser compatibility issues.
- Front-end Q&A 734 2024-03-11 16:41:24
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- What are the life cycles of vue3
- vue3的生命周期：1、beforeCreate；2、created；3、beforeMount；4、mounted；5、beforeUpdate；6、updated；7、beforeDestroy；8、destroyed；9、activated；10、deactivated；11、errorCaptured；12、getDerivedStateFromProps等等
- Front-end Q&A 1971 2024-02-01 16:33:47
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- The difference between vue2 and vue3 two-way binding
- The differences between vue2 and vue3 two-way binding: 1. Underlying implementation; 2. Performance optimization; 3. Responsive system; 4. Error handling and debugging; 5. Templates and rendering functions; 6. Combination API; 7. Support for TypeScript; 8. Comparison between Composition API and Options API; 9. Dependency injection; 10. Template compilation optimization; 11. Integration of Composition API and Reactive API; 12. Newly introduced features and improvements, etc.
- Front-end Q&A 1580 2024-02-01 17:06:20
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- Detailed explanation of this in JavaScript arrow function
- The arrow function in JavaScript is a relatively new syntax. It does not have its own this keyword. On the contrary, the this of the arrow function points to the scope object containing it. The impacts are: 1. This in the arrow function is static; 2. Arrow Functions cannot be used as constructors; 3. Arrow functions cannot be used as methods.
- Front-end Q&A 1137 2024-01-25 13:41:10
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- How to intercept a string with split
- The split() method in JavaScript is used to split a string into substrings. To intercept a string, you can use the substr() method and substring() method: 1. string.substr(start, length), used to intercept from a string Substring of specified length; 2. string.substring(start, end), string is the string to be intercepted, start and end are both 0-based indexes.
- Front-end Q&A 869 2024-01-25 11:16:38
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- How to use split() method
- The split() method is a method called on the string object. It is used to split the string into substrings and return a list composed of these substrings. The method is "string.split(separator, maxsplit) ", where string is the string to be split, separator is the separator, used to specify at which characters to split, maxsplit is an optional parameter, used to specify the maximum number of splits.
- Front-end Q&A 1283 2024-01-25 11:10:01
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- How to open xml file
- The method to open an XML Extensible Markup Language file is: 1. Install a text editing software on your computer; 2. Open the text editing software, and then select "File" -> "Open" in the menu; 3. In the pop-up file In the browser window, find the XML file you want to open, select it and click "Open"; 4. The system will use the text editing software of your choice to open the XML file and display its content.
- Front-end Q&A 3937 2024-01-10 15:44:49
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- Website to view source code online
- You can use the browser's developer tools to view the source code of the website. In the Google Chrome browser: 1. Open the Chrome browser and visit the website where you want to view the source code; 2. Right-click anywhere on the web page and select "Inspect" or press the shortcut key Ctrl + Shift + I to open the developer tools; 3. In the top menu bar of the developer tools, select the "Elements" tab; 4. Just see the HTML and CSS code of the website.
- Front-end Q&A 4268 2024-01-10 15:31:49
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- Why css framework needs js
- There are five reasons why the css framework requires js: "interactive function", "responsive design", "animation effect", "form validation" and "compatibility processing": 1. JavaScript is required to implement interactive behavior, event processing and User feedback, etc.; 2. Help adjust the layout and style of page elements to adapt to different screen sizes and device types; 3. Dynamically add, remove or modify CSS classes to achieve complex animation effects; 4. Provide some Tools and styles for form validation and more.
- Front-end Q&A 1382 2024-01-02 14:22:24
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- What are the grammatical structures of the id selector?
- The id selector is a selector in CSS used to select HTML elements with a specified ID. The syntax structure is "#id{/* CSS style rules */ }", where the # symbol indicates that this is an id selector, followed by the ID name of the element to be selected, such as "#header".
- Front-end Q&A 974 2024-01-02 14:10:24
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- What file is localstorage?
- localStorage is not a file, but a client-side technology that stores key-value pairs in the browser. Using a simple "key/value" storage model, data can be stored in the user's browser so that it can be stored under the same domain name. To share data between websites, localStorage is stored in the browser's cache area, usually in a file on the hard drive.
- Front-end Q&A 1705 2024-01-02 14:07:15
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