What are some examples of function parameters in programming?
Function parameters are variables used in functions to pass data. For example, in Python, you might have a function like def add(a, b): return a + b
, where a
and b
are parameters.
Can you give me an example in JavaScript?
Sure! In JavaScript, you could define a function like this: function multiply(x, y) { return x * y; }
. Here, x
and y
are the parameters.
What about default parameters?
Default parameters allow you to set default values for parameters. For example, function greet(name = 'Guest') { return 'Hello, ' + name; }
will greet 'Guest' if no name is provided.
How do I handle variable numbers of parameters?
You can use the rest parameter syntax in JavaScript. For example, function sum(...numbers) { return numbers.reduce((acc, num) => acc + num, 0); }
allows you to pass any number of arguments.
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