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JavaScript

Posted by marckaljonp
marckaljonp
14,079 Points

When using a method, how to tell if the 'variable' or 'object' should be before the '.' or inside a set of parenthesis?

I'm kinda new to coding so I may not be using the correct terms but here's an example of what I mean:

var string1 = 'This is a string';

// displaying this in the console
console.log(string1);

// converting all characters to upper case
string1.toUpperCase();

  • How do I determine if the variable 'string1' should be used before the dot, as used in the 2nd method or inside a parenthesis like in the 1st method?

  • Do we just have to know it at the top of our heads or is there some sort of a hint?

Thank you!

Khaleel Yusuf
Khaleel Yusuf
15,208 Points

It should be used before the dot like in the 2nd method. And no, every variable you use with toUpperCase();, you will have to put it before the dot. Everytime you are using a function like toUpperCase();, you put it behind the dot. But functions like console.log, you put in parenthesis.