Question

Java-Script Concept quiz:

1) the versions of Java+Script that are fully supported by all modern browsers ( Except internet explorer 9) are:
A. ECMAScript 5, ECMAScript 6
B. ECMAScript 4, ECMAScript 5
C. ECMAScript 3, ECMAScript 5
D. None of the above

2) Java-Script is used to implement complex features on a_____
A. web page
B. learning management system
C. Hard drive
D. none of the above

3) computer programming tools that are used to store data are called____
A. Tags
B. Boxes
C. variables
D. None of the above

4) var name = Scott; is the code to create a ____ called "Scott"
A. value
B. name
C. variable
D. None of the above

5) the key difference between "var" and "let" variables is that____
A. "var" can be re-defined and "let" cannot
B. "var" are short term, "let" are long term
C. "var" store graphic elements, "let" stores basic elements
D. None of the above

6) Hoi-sting in Java-Script is the process whereby declarations get moved to the____
A. bottom
B. left side
C. top
D. None of the above

7) Im JavaScript, "/ /" is used to code____
A. comments
B. variables
C. headers
D. None of the above

8) ______ data types have two potential values - true and false.
A. null
B. variables
C. headers
D. None of the above

9) Using ____ gives coders the ability to query data set data to create blueprints.
A. objects
B. comments
C. consoles
D. None of the above

10) The order of best medical operations used with Kodi Java-Script is known by the acronym _______​

Answer 1

Answer:

Explanation:

1) the versions of JavaScript that are fully supported by all modern browsers ( Except internet explorer 9) are:

C. ECMAScript 3, ECMAScript 5

2) JavaScript is used to implement complex features on a_____

A. web page

3) computer programming tools that are used to store data are called____

C. variables

4) var name = Scott; is the code to create a ____ called "Scott"

D. None of the above

Scott is a variable

5) the key difference between "var" and "let" variables is that____

D. None of the above  

let is used to redefine a variable by using var to redefine may cause problems

6) Hoisting in JavaScript is the process whereby declarations get moved to the____

C. top

7) Im JavaScript, "/ /" is used to code____

A. comments

8) ______ data types have two potential values - true and false.

D. None of the above

Boolean is the data type and null is always false

9) Using ____ gives coders the ability to query data set data to create blueprints.

C. consoles

The Console object provides access to the browser's debugging console.