m3g/julianotes.jl

A collection of examples and explanations about Julia

JuliaNotes

A collection of explanations and tips to make the best use of Julia. Many answers are extracts from solutions provided to user questions in the Julia Discourse.

The only thing to look here is the Documentation.

julianotes.jl's Issues

anonymous function and scope

Thanks for the JuliaNotes.jl.

A short comment on anonymous functions: it's all about global scope.

For instance, when the anonymous function is used in a loop (which is the likely scenario for a performance critical situation) and all parameters (a and b in your example) are local to the loop, then we don't have type instability, or?

Closure example, working MWE?

Hi,

I tried to put your example into a running code:

function solver(f,x)
    y = f(x)
    return y
end

a = 5
f(x,a) = a*x

# closure
g(x) = f(x,a,b,c)
a = 1; b = 2; c = 3;
x = 5.0;
solver(g, x)

Obviously, the f defined several lines above is not fitting to the call.
Could you provide a suitable f() to produce the shown result?
Thx