Use variable set in child function in Parent function

Question

Say I have a child function.

function hello {
$x= 1
$y = 2;    
}

function outerFunction {

hello

$z = $x + $y

}

Is it possible to somehow do this?

Yes, you just need a dot before the function call: . hello — Santiago Squarzon
– Santiago Squarzon, Commented Mar 24, 2022 at 15:50
Can also set the scope of the variables, but Santi's suggestion is the way I'd take as well. — Abraham Zinala
– Abraham Zinala, Commented Mar 24, 2022 at 15:52
so, inside your function you would set the scope of the variables: $script:x = 1. Then when you call on hello, you would load $x into the script scope making it available to you. — Abraham Zinala
– Abraham Zinala, Commented Mar 24, 2022 at 17:15

Santiago Squarzon · Accepted Answer · 2022-03-24 16:04:08Z

1

You can use the Dot sourcing operator . to bring the variables defined in the scope of the hello function to the scope of outerFunction function:

function hello {
    $x = 1; $y = 2
}

function outerFunction {
    . hello
    $x + $y
}

outerFunction # => 3

You could also consider a different alternative depending on your use case, where the operator is not involved. For example:

function hello {
    1, 2
}

function outerFunction {
    $x, $y = hello
    $x + $y
}

outerFunction

answered Mar 24, 2022 at 16:04

Santiago Squarzon

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