So, I have seen this before, but never used it because ive never really understood it
for example in code pen will log 5 with the code below
var a = 5;
is it like (while)? while is always going to be true, so thats why you would need a break if you use it. So a is 5 and true?
if (a) is always true because ‘5’ is a ‘truthy’. That is 5 evaluates to ‘true’.
There are values that are ‘falsey’ on the other hand like 0 which always evaluates to false.
I will have to look that up. I have never heard of “truthy” or “falsey” before.
Most of it can be summarized as:
Falsey: 0, null, undefined, empty string (
""), false, NaN.
Rest of what you can think of is truthy.
This is my understanding but there’s definetly something I’ve missed since it’s just what I can recover from memory, hope it helps.
Definitely helps Always thought about it, but never asked. Now I can put it into practice