What is the meaning of the symbol => in Pine Script? it is not as >= or <=, but used for some other reason? Thanks.

Here is where the symbol is used:

#obv(src) =>
# cum(change(src) > 0 ? volume : change(src) < 0 ? -volume : 0*volume)

I believe the conditional operator ? is what is adding complexity for you

here is a high level view of it


(something evaluated) ? if_true_do_this : else_do_this


see

https://docs.google.com/document/d/1sCfC873xJEMV7MGzt1L70JTStTE9kcG2q-LDuWWkBeY/edit


your example simply uses it twice within itself

you could do the same thing with


if( compare something)
{
do this if true
}
else
{
do this if false

if( compare something else)
{
do this if true
}
else
{
do this if false
}
}



some like conditional operators because with some compilers/interpreters it's faster/quicker/cooler but whats a few cpu ticks with today's computers...I opt for readability