Below is a list of potential QWERTY keyboard 'typos' (typing mistakes) for the phrase 'glass', from the free online typo generator. Enter another phrase to see possible typing errors, or select from one of the "top typos" charts.
Original
glass
Transposition0
lgass
galss
glsas
Transposition1
algss
gsals
glssa
Transposition2
slags
gsasl
Transposition2r
salgs
gssal
Transposition0x2
lgsas
lgass
galss
Slip3A
lagss
gasls
glssa
Slip3B
aglss
gslas
glsas
Omission
lass
gass
glss
glas
Repetition
gglass
gllass
glaass
glasss
QWERTY Substitution
flass
hlass
gkass
glsss
glaas
glads
glasa
glasd
QWERTY Repetition after
gflass
ghlass
glkass
glasss
glasas
glasds
glassa
glassd
QWERTY Repetition before
fglass
hglass
gklass
glsass
glaass
gladss
glasas
glasds
QWERTY Substitution Transposed
lfass
falss
flsas
lhass
halss
hlsas
kgass
gakss
gksas
lgsss
gslss
lgaas
galas
glasa
lgads
galds
gldas
glasd
lgasa
galsa
glsaa
glaas
lgasd
galsd
glsad
glads
WrongDoubles
glaas
$JSON
$address
$applyDefault
$clone
$commas
$copy
$copyFields
$delete
$entries
$expand
$filt
$getType
$isArray
$isBoolean
$isClass
$isDate
$isElement
$isFunction
$isNumber
$isObject
$isString
$isType
$isValidDate
$json2txt
$keys
$load
$matchall
$parseFloats
$pick
$postJSON
$prune
$save
$set
$sortBy
$stringify
$sum
$svgPoster1
$textify
$toFixed
$type
$without
Glossary
Transposition = adjacent pairs of letters are swapped
Omission = individual letters are missed out
Repetition = individual letters are entered twice consecutively
QWERTY substitution = letters are replaced by each of their QWERTY-keyboard based physical neighbours (e.g. 'h' gets replaced with y, u, j, n, b, g)
QWERTY repetition type 1 = letters are followed by each of their QWERTY-keyboard neighbours
QWERTY repetition type 2 = letters are preceded by each of their QWERTY-keyboard neighbours