UST UI Developer Interview Questions and Answers

20 Aptitude questions, 30 React/HTML/CSS MCQs, 2 coding questions on an outdated compiler

Q1. Difference between Var,let and const
Ans. 
Var is function scoped, let and const are block scoped. Var can be redeclared and reassigned, let can be reassigned but not redeclared, const cannot be reassigned or redeclared.
• Var is function scoped

• Let and const are block scoped

• Var can be redeclared and reassigned

• Let can be reassigned but not redeclared

• Const cannot be reassigned or redeclared
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Q2. New features in Angular 10
Ans. 
Angular 10 introduces new features like stricter types, optional strict mode, and performance improvements.
• Stricter types with TypeScript 3.9

• Optional strict mode for better type checking

• Improved build times and smaller bundle sizes

• Updated dependencies like TypeScript 3.9 and TSLib 2.0
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Angular html css questions

1) logical & math & reasoning 20 Question
2) coding 2 question
3) React js 40 Question

Q1. 1 tell me something 2 rm vs em difference 3 MapObject vs Object 4 BOM 5 difference between for loop IN vs OF 6 function currying 7 Pure component 8 virtual dom
Ans. 
UI Developer interview questions covering topics like rm vs em, MapObject vs Object, BOM, function currying, Pure component, and virtual dom.
• rm vs em: rm is relative to the font size of the root element, while em is relative to the font size of the element itself.

• MapObject vs Object: MapObject is a method that creates a new array with the results of calling a provided function on every element in the array, while Objec...read more
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Q2. Event propagation vs immediate propgation Div vs Section tag
Ans. 
Event propagation determines the order in which event handlers are executed, while immediate propagation stops propagation immediately. Div and Section tags are used for structuring HTML content.
• Event propagation allows events to 'bubble up' or 'capture down' the DOM tree, while immediate propagation stops propagation immediately.

• Div tag is a generic container for grouping and styling content, while Section tag is used...read more
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Q1. HTML, CSS Question and JavaScript Codding Questions
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Q1. It is In Process
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Q1. Question on javascript basics and some difficult programs which available online
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Q2. Question related to angular
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Q1. Angular related question
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Q1. Javascript based questions
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Q1. Generic interview
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