QUIZ #1 JAVASCRIPT

Which of these will increase the value of the variable X?

• increment (x)

• x++;

• x=x;

• x+1;

Which of the following will decrease the value of x?

• x--;

• x-1;

• x=x;

• x=-x;

What is first index value of an array?

• 0

• -1

• 1

• undefine

array = [1,2,3,4,5]

What is the length of this array?

• 5

• 4

• 6

• undefine

His name is Fred and he is less than 16 years old

• if (name = "fred" && age < 16 )

• if (name === "fred" && age < 16 )

• if (name = "fred" || age < 16 )

• if (name === "fred" || age < 16 )

What will be the output to the console for the following code:

var colors =["Yellow", "Orange", "Blue"];

colors.shift();

colors.unshift("Purple");

console.log(colors);

• ["Orange", "Yellow", "Purple"]

• ["Purple", "Yellow", "Orange", "Blue"]

• ["Yellow", "Orange", "Blue", "Purple"]

• ["Purple", "Orange", "Blue"]

Which is the correct code to remove the 1 from this array?:
arr = [1,2,3,4,5];

• arr.push();

• arr.pop();

• arr.shift();

• arr.unshift();

array = [1,2,3,4,5] What would the array look like after we execute this?:

array.pop();

• [2,3,4,5]
• [2,3,4]

• [1,2,3,4]
• [5,4,3,2]

JavaScript Date objects represent a single moment in time in a platform-independent format.

• TRUE

• FALSE

The getMonth() method returns the month in the specified date according to local time, as a zero-based value (where zero indicates the last month of the year).

• FALSE

• TRUE