Test Your Programming Skills with Safcode!

---

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"

---

Quiz Start

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

View Answer

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

View Answer

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

View Answer

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

View Answer

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

View Answer

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

View Answer

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

View Answer

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

View Answer

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

View Answer

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

View Answer