match_no_match_pattern.exs

# will match
a = [1,2,3]

#will match
a = 4

# will match
4=a

# will not match
#[a,b]=[1,2,3] 

# will match
a=[[1,2,3]]

# will match
[a]=[[1,2,3]]

#will not match
#[[a]]=[[1,2,3]]