Persistent Systems UI Developer Interview Questions and Answers

Q1. Reverse a String in Javascript
Ans. 
To reverse a string in Javascript, we can use the built-in reverse() method.
• Convert the string to an array using split() method

• Use the reverse() method to reverse the array

• Convert the reversed array back to a string using join() method
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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. Div and Section tags have different default display properties.
• Event propagation refers to the order in which event handlers are executed, either bubbling or capturing.

• Immediate propagation stops the event from propagating further.

• Div tag is a block-level element with default display property of 'block'.

• Section tag is a block-level element wit
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Angular html css questions

Q1. HTML, CSS Question and JavaScript Codding Questions
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Q1. It is In Process
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Q1. Related to javascript
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20 Aptitude questions, 30 React/HTML/CSS MCQs, 2 coding questions on an outdated compiler

Q1. Explain difference between inline and inline block
Ans. 
Inline elements do not start on a new line and only take up as much width as necessary, while inline-block elements can have a width and height set.
• Inline elements do not start on a new line and only take up as much width as necessary

• Inline-block elements can have a width and height set

• Inline elements ignore top and bottom margins and padding, while inline-block elements respect them
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Q2. Described semantic html
Ans. 
Semantic HTML is a way of writing HTML that focuses on the meaning of the content rather than its appearance.
• Semantic HTML uses tags that clearly define the purpose of the content, such as <header>, <footer>, <nav>, <article>, <section>, <aside>, <main>.

• It helps improve accessibility for users with disabilities by providing more context to screen readers and other assistive tec...read more
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