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JavaScript JavaScript Basics (Retired) Making Decisions with Conditional Statements Build a Random Number Guessing Game

3,424 Points

The number was ' + randomNumber + '

I don't understand this part why ' put there? not here 'randomNumber'?

1 Answer

Rune Andreas Nielsen
Rune Andreas Nielsen
5,354 Points

The reason that you don't use ' between + and randomNumber, is that if u do that, the browser won't know it´s a variable, it would think it is a string.

When using the + symbol, the browser knows it´s job is to concatenate the variable with the string.

So lets say that you would write code like this:

var randomNumber = 10;
alert('The number was ' + 'randomNumber' + '.')

Then the output would be "The number was randomNumber."

Using the syntax the video shows:

var randomNumber = 10;
alert('The number was ' + randomNumber + '.')

The output will be "The number was 10."