"Learning Notes" JavaScript coding specification-variables

Always declare a variable with VAR, or change it to a global variable. We have to find a way to avoid global space pollution.

BADAAA = new AAA (),//goodvar AAA = new AAA ();//god bless!

declaring each variable with VAR makes it easy to add a new variable declaration without worrying about a, replacing a

Badvar items = GetItems (); Gosportsteam = true;d ragonball = ' z ';//goodvar items = GetItems (); var gosportsteam = true; var dragonball = ' Z ';//god bless!

Assigning a value to a variable at a scoped point helps to avoid the issue of variable declaration issues related to claims elevation.

"Learning Notes" JavaScript coding specification-variables