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JavaScript JavaScript Loops, Arrays and Objects Tracking Multiple Items with Arrays Using For Loops with Arrays

Posted by Ming Chi Wong
Ming Chi Wong
2,909 Points

Using the function print(message);

I don't quite understand how the function print(message) work? I thought the variable message inside the parenthesis has to be declared before the function can be executed?

3 Answers

Seth Kroger
Seth Kroger
56,413 Points
Seth Kroger
Seth Kroger
56,413 Points

When you define a function the parameters are automatically declared as variables within the function's body. There is no need to declare them separately.

Ming Chi Wong
Ming Chi Wong
2,909 Points
Ming Chi Wong
Ming Chi Wong
2,909 Points

I meant from the exercise they did, they didn't define the variable message in the function print().

Adam Beer
Adam Beer
11,314 Points
Adam Beer
Adam Beer
11,314 Points

Simpliest way, just create a variable and give content to a string, like this

var myFirstPrint = "This is my first string when I learned how I can use print() method";

Now put your variable name into the print() method.

var myFirstPrint = "This is my first string when I learn how can use print() method";
print(myFirstPrint);

Print() method get a string, and print out your variable content. Hope this help!