PurpleTalk Angular Frontend Developer Interview Questions, Process, and Tips

Angular 12 is the latest version with updates on Ivy, performance improvements, and new features.

• Angular 12 is the latest version released in May 2021

• Updates include improvements to Ivy compiler, performance enhancements, and new features like strict mode

• Angular Material received updates with new components and features

• Improved support for Webpack 5 and TypeScript 4.2

Lexical this in JavaScript refers to the value of 'this' inside a function, which is determined by where the function is declared.

• Lexical this allows functions to access the 'this' value of their enclosing scope.

• It is not affected by how or where the function is called, unlike regular functions.

• Arrow functions in JavaScript use lexical this, making it easier to maintain the context of 'this'.

Html5 tags are used to structure content on web pages.

• header

• footer

• nav

• section

• article

• aside

• main

• figure

• figcaption

display none removes element from layout, visibility hidden hides element but still takes up space

• display none removes element from layout flow

• visibility hidden hides element but still takes up space

• display none will not take up any space on the page

• visibility hidden will still take up space on the page

Some disadvantages of JavaScript include lack of type safety, potential for bugs due to dynamic typing, and limited support for multithreading.

• Lack of type safety can lead to errors that are only caught at runtime

• Dynamic typing can make it harder to catch bugs during development

• Limited support for multithreading can make it difficult to write efficient concurrent code

Closures are functions that have access to their own scope, as well as the scope in which they were defined.

• Closures allow functions to access variables from their outer scope even after the outer function has finished executing.

• They are commonly used in event handlers, callbacks, and for data privacy.

• Example: function outerFunction() { let outerVar = 'I am outer'; return function innerFunction() { console.log(outerVar