SAFCODE

Test Your Programming Skills with Safcode!

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Here is all important interview / exams questions.
Student doing practice apptitude test on safcode platform.
Instruction: "Total Number of Questions: 20
Each question carry 10 mark , no negative marking"

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Quiz Start

1. When an object through a combination of properties and methods its semantics, it is called ________. Duck-typing
Compiler
CoffeScript
Traceur

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2. ompilation of the preprocessor happens only _______ just before the first JavaScript is encountered. Once
None of these
Thrice
Twice

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3. _________ converts edge JavaScript into plain old ES5 JavaScript that can run in any new as well as old browser. None of These
Webpack
Babel
Rollup

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4. _________ is a robust JavaScript minification tool. Gulp Tool
Google Closure Compiler
JavaScript Optimizer
All of them

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5. How many times does the compilation of the preprocessor happen before the first javascript is encountered? None of Them
One
Three
Two

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6. __________ converts different language into JavaScript. Compilers
Transpilers
None of them
Preprocessor

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7. Which of these are valid types of Web Worker? Neither Dedicated nor Shared
Only Shared are not Dedicated
Dedicated and Shared
None of These

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8. Which among these predefined properties does RegExp have? None of these
Pattern and Matcher
Pattern Only
Matcher and Madrid

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9. Which of these is a language and also asset of tools complied into javascript itself? TypeScript
None of Them
Non-Script
CoffeeScript

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10. Java Script entities start with ____________ and end with ___________? Ampersand, semicolon
Semicolon, colon
Semicolon, Ampersand
Ampersand, colon

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11. What language defines the behavior of a web page? HTML
Javascript
CSS
XML

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12. Which of the following protocol service uses JSON? SOAP
None of these
HTTP
IP

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13. A _______ define what kind of value will be stored by a particular variable. Return Type
Data Type
Variable
None of these

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14. Which of the following is the tainted property of a window object in Java Script? Host
Pathname
Defaultstatus
Protocol

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15. Which of the following is an asynchronous function? CallBack
Parse
Grouping
Blocking

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16. The ____ type specifies that a variable can take only positive values. Positive
Unsigned
Positive
Signed

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17. Range for char datatype is _________. None of these
-32768 t0 32767
256 to 255
-128 to 127

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18. What is the alternate name for Java script? LimeScript
ECMScript
ECMAScript
Both a and d

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19. Which of these consumes CPU cycles and makes the system less responsive? JSON
XAMPP
Web Worker
DOM API

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20. Which of the following keyword is used to create an object? new
class
None of these
Object

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