Q231. What is Dev Tools and its purpose?
DevTools is a browser extension allowing you to inspect and debug your Vue applications in a more user-friendly interface. You can find the below extensions for different...
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Q232. What does the below mean?
s = a + '[' + b + ':' + c + ']' seems like a string is being concatenated. Nothing much can be said without knowing types of variables a, b, c. Also, if all of the a, b, ...
Q233. What is the difference between RGB and RGBA colors?
RGBA is similar to RGB, but it includes an additional alpha value that represents the opacity of the color. The alpha value is a number between 0 and 1, with 0 being comp...
Q234. What is the \_document.js file in Next.js?
In the Next.js Pages Router, **`pages/_document.js`** (or `_document.tsx`) allows developers to augment the server-rendered HTML document skeleton (``, ``, ``). ### Key C...
Q235. What is the browser support of Vue.js?
It supports all ECMAScript5 complaint browsers as mentioned in this [url](https://caniuse.com/#feat=es5). VueJS doesn't support IE8 browser and below, because it uses ECM...
Q236. What is color contrast?
**Color contrast** measures the difference in perceived luminance between foreground text/elements and their underlying background. ### Web Content Accessibility Guidelin...
Q237. What is the difference between \_app.js and \_document.js?
While both are root-level files in the Next.js Pages Router, they operate at fundamentally different layers: | Dimension | `_app.js` | `_document.js` | | :--- | :--- | :-...
Q238. How do you use various CDNs?
VueJS is available in jsdelivr, unpkg and cdnjs etc CDNs. Normally you can use them for prototyping or learning purposes. For example, you can use them using jsdelivr wit...
Q239. How does color contrast applies to accessibility in web design?
It is important because people with visual impairments or color blindness may have trouble seeing things if there is not enough contrast. There are guidelines for making ...
Q240. What is the \_error.js file in Next.js?
In the Next.js Pages Router, **`pages/_error.js`** (or `_error.tsx`) is a fallback error page rendered whenever an unhandled HTTP exception (such as a 500 internal server...