Q1311. How do you force update?
It is extremely rare situation of having to manually force an update despite the fact that no reactive data has changed. i.e, To force the Vue instance to re-render manua...
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Q1312. What is a virtual table in MySQL?
In MySQL and relational databases, a **virtual table** is called a **View**: ```sql CREATE VIEW active_customer_summary AS SELECT id, first_name, last_name, email FROM Cu...
Q1313. Explain how to copy an object in Python.?
There are two ways in which objects can be copied in python. Shallow copy & Deep copy. Shallow copies duplicate as minute as possible whereas Deep copies duplicate everyt...
Q1314. What is CSS filter?
CSS filters are a set of visual effects that can be applied to HTML elements using CSS. Filters can be used to adjust the appearance of an element in various ways, such a...
Q1315. What are the steps involved in return false usage?
The return false statement in event handlers performs the below steps, 1. First it stops the browser's default action or behaviour. 2. It prevents the event from propagat...
Q1316. How to access Redux store outside a component?
You just need to export the store from the module where it created with `createStore()`. Also, it shouldn't pollute the global window object. ```javascript store = create...
Q1317. How do you create a 404 page in Next.js?
Creating a customized 404 Not Found page is straightforward in both Next.js routers: ### 1. In App Router (`app/` directory): Create **`app/not-found.tsx`**: ```tsx // ap...
Q1318. What is the purpose of Vue.js once directive?
If you want to render `a lot of static content` then you need to make sure it only evaluated once and then cached thereafter. In this case, you can use `v-once` directive...
Q1319. Are views updatable?
**Some views are updatable, but under strict structural criteria**: ### Conditions for a View to Be Updatable: 1. Must reference **only one base table** in the `FROM` cla...
Q1320. Describe how to send mail from a Python script?
The smtplib module def ines an SMTP client session object that can be used to send mail to any Internet machine. A sample email is demonstrated below. ```python import sm...