Menu
Some open source I've been using has the below line as a function declaration:
def parse_query(query=nil, options={}, models=nil)
What effect do the "equals" symbols have on the statement? Does it just make the parameters optional?
570
Ruby has an or-equals operator that allows a value to be assigned to a variable if and only if that variable evaluates to either nil or false .
What is a parameter? Parameters in ruby are variables that are defined in method definition and which represent the ability of a method to accept arguments. So, if we will not have the appropriate parameters, then we will not be able to pass arguments to a method that will contain the data we need.
It sets the default value of the parameter, if the person calling the function does not specify one.
105
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With
