Q
What is the result of 5 + null in JavaScript?

Answer & Solution

Answer: Option A
Solution:
In JavaScript, null is converted to 0 in numeric contexts, so 5 + null evaluates to 5.
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What will be the output of 'apple' + null in JavaScript?

A). 'applenull'

B). 'apple'

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A). '5true'

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What will be the output of 5 + ' apples' + 3 in JavaScript?

A). '5 apples3'

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How do you add a number and a string in JavaScript to get a numeric result?

A). parseInt(string, 10) + number

B). Number(string) + number

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How do you convert a string to a number in JavaScript before adding it to another number?

A). Number(string)

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How do you add a number and a string in JavaScript to get a string result?

A). string + number.toString()

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How do you convert a string to a number in JavaScript using the + operator?

A).

B).

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How do you concatenate multiple strings and a number in JavaScript?

A). Using the + operator

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D). Using the combine() method