JavaScript Programming Beginner Quiz 3
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Beginner Quiz 3
1. Which symbol is used for strict equality?
==
===
=
2. How do you access the first element of an array named
myArray
?
myArray(0)
myArray{0}
myArray[0]
3. Which keyword is used to define a block-scoped variable?
let
var
constant
4. How do you write a multi-line comment in JavaScript?
// comment
/* comment */
<!-- comment -->
5. What will
console.log(2 + "2")
output?
4
NaN
22
6. How do you round the number 7.25 to the nearest integer?
Math.round(7.25)
round(7.25)
Math.rnd(7.25)
7. Which method converts a string to lowercase?
toUpperCase()
toLowerCase()
lowerCase()
8. How do you find the length of a string
str
?
str.length
length(str)
str.len
9. How do you write "Goodbye" to the browser console?
print("Goodbye")
alert("Goodbye")
console.log("Goodbye")
10. Which operator is used to compare both value and type?
===
==
=
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