As I was browsing through a blog post discussing Puppeteer (a Node Library designed for browser automation), I came across the following statement:
"It is possible to add one or more arguments to page.evaluate because it is variadic in its acceptance."
What specific characteristic of a function classifies it as 'variadic'?
A variadic function is a type of function that allows for a flexible number of parameters to be passed in, which can be adjusted each time the function is called.
In essence, a function is considered variadic when the exact number of parameters is not predetermined.
This flexibility is achieved through the use of rest parameters, enabling the function to accept any number of arguments. For example, the function myFunction can accept a variable number of parameters using the syntax myFunction(...iterableObj).
The concept of variadic functions extends beyond just user-defined functions. Even built-in functions like console.log() support variadic behavior, allowing for a dynamic number of arguments to be passed in.
Specifically referencing Page.evaluate, the function also demonstrates variadic capabilities by accepting rest parameters, as indicated in its documentation.
With the second parameter args being a rest parameter, Page.evaluate exemplifies the usage of variadic functions within the context of web automation.
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