3. 3
    Autoboxing Primitive Types in JavaScript
    1m 41s

Autoboxing Primitive Types in JavaScript

InstructorTyler Clark

Share this video with your friends

Send Tweet

Primitive values by rule are not objects. However when we treat a primitive type like an object, such as getting the .length of a string, JavaScript will wrap that primitive type into an object. This new object is then linked to the corresponding built-in .prototype, so that we can utilize prototype methods on primitive types.

Michael
~ 5 years ago

But there are a lot of methods on strings, ie padEnd.

Rafael Melo
~ 4 years ago

"Primitive values by rule are not objects. However when we treat a primitive type like an object, such as getting the .length of a string, JavaScript will wrap that primitive type into an object. "

Joey Ng'ethe
~ 4 years ago

@tyler, what tool/extension do you use to show the console.log values inside the editor?

~ 2 years ago

SO THAT'S WHY I CAN'T CALL STRING.LENGTH. That always bugged me, coming from Ruby.