Below is a list of potential QWERTY keyboard 'typos' (typing mistakes) for the phrase 'a data', from the free online typo generator. Enter another phrase to see possible typing errors, or select from one of the "top typos" charts.
Original
a data
Transposition0
adata
ad ata
a adta
a dtaa
a daat
Transposition1
d aata
aad ta
a tada
Transposition2
atda a
a aatd
Transposition2r
ad ata
atad a
a atad
Transposition0x2
aadta
adtaa
adaat
ad taa
ad aat
a adat
Slip3A
daata
ada ta
a atda
a dtaa
Slip3B
da ata
aa dta
a tdaa
a daat
Omission
data
adata
a ata
a dta
a daa
a dat
Repetition
aa data
a data
a ddata
a daata
a datta
a dataa
QWERTY Substitution
s data
a sata
a fata
a dsta
a dara
a daya
a dats
QWERTY Repetition after
as data
a dsata
a dfata
a dasta
a datra
a datya
a datas
QWERTY Repetition before
sa data
a sdata
a fdata
a dsata
a darta
a dayta
a datsa
QWERTY Substitution Transposed
sdata
sd ata
s adta
s dtaa
s daat
asata
as ata
a asta
a staa
a saat
afata
af ata
a afta
a ftaa
a faat
adsta
ad sta
a sdta
a dtsa
a dsat
adara
ad ara
a adra
a draa
a daar
adaya
ad aya
a adya
a dyaa
a daay
adats
ad ats
a adts
a dtas
a dast
WrongDoubles
$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
$table
$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