Don't quite understand the last position in a substring

[designpro40710]

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console.log(“January”.substring(0,3));

If I want jan as the output, why is the second position in the substring 3? If I count from 0 the N in would be 2…

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[stetim94]

jan has the following indexes: 0, 1 and 2. and substring works for values lesser then (<) the stop value (in your case 3)

[designpro40710]

Sorry, still don’t understand. Why is the stop value 3?

[stetim94]

because you want to get jan which are at the following indexes: 0, 1 and 2

so you need a stop value of 3, because the stop value is not included

[designpro40710]

Oh, didn’t realize the stop value wasn’t included thanks!

[stetim94]

@stetim94

substring works for values lesser then (<) the stop value

that was also in my original answer, what do i need to improve upon on my first answer?