gs gs106 Lexical Structures - JavaScript Statements - Quiz No.1
gs gs106 Javascript Quiz
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Question 1: JavaScript is a _______________ language.
Object-Oriented
High-level
Assembly-language
Object-Based
Question 3: A conditional expression is also called a _______________
Alternative to if-else
Immediate if
If-then-else statement
Switch statement
Question 4: Which is a more efficient JavaScript code snippet?
Code 1 :
Code 1 :
for(var num=10;num>=1;num--) { document.writeln(num); } Code 2 :
var num=10; while(num>=1) { document.writeln(num); num++; }
Code 1
Code 2
Both Code 1 and Code 2
Cannot Compare
Question 5: What is a block statement in JavaScript?
conditional block
block that contains a single statement
both conditional block and a single statement
block that combines multiple statements into a single compound statement
Question 6: When an empty statement is encountered, a JavaScript interpreter __________
Ignores the statement
Prompts to complete the statement
Throws an error
Shows a warning
Question 7: The “var” and “function” are __________
Keywords
Declaration statements
Data types
Prototypes
Question 9: What happens in the following javaScript code snippet?
var count = 0; while (count < 10) { console.log(count); count++; }
The values of count are logged or stored in a particular location or storage
The value of count from 0 to 9 is displayed in the console
An error is displayed
An exception is thrown
Question 10: The enumeration order becomes implementation dependent and non-interoperable if ___________
If the object inherits enumerable properties
The object does not have the properties present in the integer array indices
The delete keyword is never used
Object.defineProperty() is not used
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