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JavaScript JavaScript Foundations Strings Methods

Posted by Li Xia
Li Xia
4,671 Points

executing methods

Why do some methods such as .toUpperCase require () to execute while others such as .length do not?

2 Answers

James Barnett
James Barnett
39,199 Points
James Barnett
James Barnett
39,199 Points

Because .length actually is not technically a method its a property.

You can think of them this way:

  • Properties are like nouns. They have a value or state.
  • Methods are like verbs. They perform actions.

Methods require parentheses because they are a type of function and all functions require parentheses even if they don't take any arguments.

further reading: https://www.utexas.edu/learn/javascript/objects.html

Li Xia
Li Xia
4,671 Points
Li Xia
Li Xia
4,671 Points

Thank you, your answer was really helpful!