JavaScript - Saving the USer Name

HTML - class form input placeholder class

JavaScript - Clock

<div> <div> tag : The <div> tag defines a division or a section in an HTML document. <div> 요소는 컨테이너로서 아무것도 표현하지 않습니다. 대신 다른 요소 여...

JavaScript - if/else, understanding classList

if else

JavaScript - 백틱, function, DOM

JavaScript - let, const, var, Array, Object

Variable variable : something that can be changed