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JavaScript JavaScript Numbers Working with Numbers Convert Strings to Numbers

Farid Lavizadeh
Farid Lavizadeh
12,006 Points
Posted by Farid Lavizadeh
Farid Lavizadeh
12,006 Points

Why does Guil call parseInt() a method?

Why does Guil call parseInt() a method? Since it doesn't have a receiver object shouldn't it be a function?

4 Answers

Farid Lavizadeh
Farid Lavizadeh
12,006 Points
Farid Lavizadeh
Farid Lavizadeh
12,006 Points

I understand that. Please let me know if I am correct on followings:

1) string.parseInt() would be a method 2) parseInt(string) would be a function

I am confused. If parseInt() is a method then why is it not used per number 1 above and instead passed as an argument per number 2 above?

When we use toUpperCase() method we don't put the string between parenthesis. Right?

Dmitry Polyakov
Dmitry Polyakov
4,989 Points
Dmitry Polyakov
Dmitry Polyakov
4,989 Points

Hey, parseInt() converts a string into a number

Dmitry Polyakov
Dmitry Polyakov
4,989 Points
Dmitry Polyakov
Dmitry Polyakov
4,989 Points

It's method on Number. If you have a string, let's say "1" and save it into a variable num: const num = "1";

The complete statement to convert it into a number will go like this: Number.parseInt(num)

Farid Lavizadeh
Farid Lavizadeh
12,006 Points
Farid Lavizadeh
Farid Lavizadeh
12,006 Points

Ah..Now it makes sense. Thank you Dmitry. :)