compare

 
compare two objects 
equal

 
test if two objects are identical 
min

 
return the smaller of two items or the smallest element in a sequence 
max

 
return the larger of two items or the largest element in a sequence 
smallest

 
return the smallest element in a sequence 
find

 
find an object in a sequence 
match

 
find a sequence as a slice of another sequence 
sort

 
sort the elements of a sequence into ascending order 
custom_sort

 
sort the elements of a sequence based on a compare
function that you supply
