Variable

List unpacking

	:h let-unpack

Vim allows you to create and populate two variables from a list:

let [var1, var2] = mylist

which is equivalent to:

	let var1 = mylist[0]
	let var2 = mylist[1]

There is also an (untagged) section on that help page titled "List unpack". It says you can do:

	let [var1, var2; rest] = mylist

to collect an optional unknown number of items in a list.

And you can use a related trick to perform operations on multiple existing variables at once:

	let [var1, var2] += 1

There is lots to like about this language.

Condition

• "foo" : False
• 1 : True
• 0 : False
• "1foo" : True

==# case sensitive ==? case insensitive

Strings

• "3foo" + "5bar" = 8
• 10 + "20.10" = 30 "20.10" convert to number is 20.

Function

Arguments

function Varg(...)
  echom a:0
  echom a:1
  echo a:000
endfunction

• a:0 : the length of variable-length
• a:1 : the 1st arg
• a:000 : the list of all args

<<Back