change the return value to NaN instead of a number

Hey there, I have something similar to this:

var abc1 = 1846;
var abc2 = 1649;
var abc3 = 174;
var abc4 = 27;

if(message.toLowerCase() == ('!xyz')) { client.say(channel, `abc1`  +`(${+ abc1.toLocaleString()})` +` | abc2 `+`(${+ abc2.toLocaleString()})` +` | abc3 ` +`(${+ abc3.toLocaleString()})` +` | abc4 ` +`(${+ abc4.toLocaleString()})` +` | :) `);}

After entering !xyz:

Result :

abc1(NaN) | abc2 (NaN) | abc3 (174) | abc4 (27) | 2

What could be the issue?

How come abc3 and abc4 are working but abc1 and abc2 are not?

Answer №1

When you use ${+ zxc1.toLocaleString()}, the + will coerce the result of zxc1.toLocaleString() back to a number, which may seem counterproductive.

If you are uncertain whether something is a number, it's recommended to use the Number function e.g. ${Number(zxc1).toLocaleString()} instead of using +

The reason why 3 and 4 work is likely because your locale includes a thousands separator, making it challenging to directly cast 1 and 2 back to numbers

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