JavaScript Basics

What is a variable?

If a user enters "10" when prompted, what will the result be?

var x = Number (prompt("Enter a value:"));

var result = x * 3 - 1;

result += 5;

console.log(result);

If a variable's role is to store the total amount of an invoice, what should we name it (in compliance with camelCase)?

If a user enters 10, what will the result be?

var x = Number (prompt("Enter a value:"));

if (x <= 10) {

if (x >= 5) {

console.log ( "A");

}

console.log("B");

} else {

console.log("C");

}

Which operator should be used in the place of "???" so that the statements make sense?

var num1 = Number (prompt("Enter the number 1:"));

var num2 = Number (prompt("Enter the number 2:"));

if ((num1 < 0) ??? (num2 < 0)) {

console.log("At least one of the two numbers is negative");

} else {

console.log("The two numbers are positive or zero");

}

How many times will the text display in this program?

var i = 0;

while (i <= 4) {

console.log ( "Hey there!");

i++;

}

How many times will the text display in this program?

for(var i = 1; i < 5; i ++) {

console.log ( "What's up?");

}

When you don't know how many times a loop should run, which loop type should you choose?

While loop

For loop

While or For, either one

Other

Please Specify:

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