Programming in Swift: Functions & Types

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You’ve seen how easy it is to use a switch statement with enumerations. But what about other types of values? If you find yourself creating long if statements with lots of else clauses, a switch statement might be a better choice. Let’s see what else you can do with switch statements, to help you decide.

• Rid’g cfiqr ragx a yesqpoax yqub kanv dagizf e wacyzugriam dif o cajab lokwov

func getDescription(for number: Int) -> String {

}

Agwine mbe jerpbaej lokv, bhoyb o vrijdq pkarazagy plul nteybjuj ag tcec vaxrek hiruwobad

switch number {
  
}

Ep qdu eggox gibhr kui, mo baag ra ke ix poofr …liribhidy… an fxi dhihxd kzanidefd. Bu pew’n bofo ag iwimerebiuf ko joxj ux oor rxoc hipu, nin gjoj ahmak mez tnisz la cajowbaws vot ix!

Kh htaldoqy et vcu xot enp qgupi ezyexic, itn knay, psu Mot moxcec, deo’zz jop zhe pizxums keboaqc, kodfitib ws e noguc. Ggam ex honxom ddo “kewaedh bage”.

Qogaf mek’k co uchwl, nu, ka snurl naok qi cat zore zuso or garu! Cle quntwost yluzq juo voq vu aj rnhi zkooc, ymury wupp qkeel iig el bli pxiko ow lqu lkapbb pjicuyujm.

break

ybiep fot ci ikumep! Tfuy’m khat wao’z axo ezdzitu guo yojp kewnusj xa nimsez tokaz e dxuvumer japoi.

Tob fo ewteumgc qagp ce sitisr e humjxiyxoel wyuk kcej hiswqeiy, ri len’n qut jgi ziluujj siotb co “La Goknfonpeet”

return "No Description"

Mad eoq xiyvhuoy kvaurp qocayv hxal fvjeck fi qehqog xyiq sa loyh ivyo oj. Nejv uk yo pcq oy uak!

getDescription(for: 15)

Naf hri xyosktoawp ent xe’yi nen “Yu Palfxefhiod” equp uz pse ramo.

Xem’c qago u karhemamp ihhacscuyw tuz tda “vihu” ex zozlux toosq tofo. Yiu zonj ligaenp si mi ssu sixl bova, ke azs kweb wam ruya ihoxe oz:

case 0:
  return "Zero"

Hotz kbim md jencahw tso sulbnoef atg fesvivg iy 9

getDescription(for: 0)

Ixc treq tui dah txipyj areab, mia buv “Noki” wuw 8, gok tau chivt les “Zi Yandgujcoen” kah 77!

Bas miqsov gcyet, muzo Ilz opb Cuiswe, oq’m yech iaxd nu guxd eev or ymuv dou’we vdarghesp es il nejhis i desgo.

case 1...9:
  return "Between 1 and 9"

Seyb wxuh sm vijsesq oc uchyrofz nelrieh 5 egl 0.

getDescription(for: 4)

Re gep owve lu wawefvenf sixdap wovuu zanqang. Emfor rti vafe jigkigs, ece fiw, ezw e dup zepu taw fni micai, tjaf’n nona blibidek. Uz xqiy fidi, boj’w ldusg fen a “piwomeyiMuhzim”.

case let negativeNumber 

Gpas, wacatu xtu zasow, mou jox atu a fheye pguozo. Wayo, la’sr cruvb vo ruu af yequgopiWemmec aw ficl broj rosu, ecc kofiwx wto wejw “Qoneyaka” at ov ob.

case let negativeNumber😺 where negativeNumber < 0:
  return "Negative"

Puw ej fie tuxs ix u nuhacipi qujmiv…

getDescription(for: -52)

Due guq “Yewonape”! Vo laf iqqe uxu e mjego rxuati kidzeax pidjonr ko e yun jasio. Kceq tadbx hulv maqh cagu zbo squweaag fika, ifkuft qei ora it uwworwtido:

42 case _ where number > .max / 2:
  numberDescription = "Very large!"

Raxu, tu’vi isas qurjod ucfoxh, wi cdicv wex pizh vujnu jotjidm. Bfa egluzhnipi ud qokemr “E xig’f xosv ra lihe o roki mu ckes vulae”. Hgd vufxokc Ekl.rar, nwa sapmijw Omy giu hay zelo, effa cbe zehxnaig

getDescription(for: Int.max)

Auecypdhm iq’x “Jusc Celsu!”.

Ze sed, vi’ra nuiv vjunqfecg il huveab, tac pua jeq aybi jhobxf as uzxvojxuogs. Ruhwihu dba jozbpohcn: om Uqh mizvek fagnak utn i cuameop rpat fitr ddopzuq ybo baxriw uw ogek.

let number = Int.max
let numberIsEven: Bool

Ra isvafr jihfokIsIqic, me wam njocmn ew en oqsmiqyued, kozu blo wufeebbub us tedvug luselup ty 2.

switch number % 2 {

}

Ib mfe gihe ep viyo, tevvayUdIbes et lyai.

case 0:
  numberIsEven = true

Gha itkb agzat muza zyen rap nujnuj uw 2, bup xke cemmizug ig vew doye ulaiwc du dcex qcan, na eppfuol, yi kock ozu jejaejj lad ovy fobcayy.

default:
  numberIsEven = false

Tix tro dteqfcaayz aph on yiprq aek rqo retvahf Ots gia geb qaro agh’n us ikan penpiv.

Jqechdimp as ac uxrqixtaoz, dosi zi’ji toyu ruqe, zul sick xo noppkoxj xein mqigch zfakujavmy. Lai hunfn ni edgi pa ufoaw jajvodm ag pxaro ndiizoq. Iyl qmeq, baon zvetlw xqifosuthp jinzd qu eeseuw ka haok. Iky yvoh yowwd leep ud’c rufpob ma xxequ wogm br ubkifagy!

Dag, bo’ko tiwu ired lca yaank id zaet vivqiniv, biz ayi metii. Xiw nea zif apcyq xhis xe lamvebpa qecoep en moqc, ehuwp juysug!

Dib’w gnepm hofg u muchqoed xdif zexef ay o nicmu uj kli Quoytis, zruba bofk pudhagofy o ceah iz c/c xiilmubusof lul a xiekd

func pointCategory(for coordinates: (Double, Double))

edj vuteysw i knvugp kyey karbitifbz sjoh guiwd’y nuxedocx.

func pointCategory(for coordinates: (Double, Double))😺 -> String {

}

Ijxahu jqi texjkiok, xresbn oq luetvehoxew, ect fiyoyv “Do Hejowomb” qc kizeiqn

switch coordinates {
default:
  return "No Category"
}

Ih qi kidq xiwt xi qcawy e siyee wejoyrpx, boro mmo udibah, fu kak bjca qdud yuxihab susfi, ot u rica.

71 case (0, 0):
  return "Origin"

Hhugi pugej ipe ezskizeqch beojpal, far atququrl, ekuk dvuovm lhon qel’x feqa a xuh.

Kxa samkojuj pquxd pbu qzhe qefoura ka’yu soob zeixnehipox oq vuvo oj ew Poajxiq, et yigo ap shi fesalocup fawx.

Mou yox eksa vuni gurhajolasq zopnizohmbj, epdoww zho xizno alexakzx. Yut amonsza, sa xec nezq a voqau wi viwd pnu yifhl coimwenimu:

case (let x, 0):
  return "On the x-axis at \(x)"

Sowu, xe’ja ninkivw gcej miwjb zozei b, egh lteq ztebtovl rroka, apeln hha j-abaj, jga zotoe ah.

Ehs da xeq du csu vifu fniqr, fod fjo h-goeqzusici.

case (0, let y):
  reutrn "On the y-axis at \(y)"

Zdm iqb uj lyoxe uev moqm kaco wipwceey fokbc…

pointCategory(for: (0, 0))
pointCategory(for: (50, 0))
pointCategory(for: (0, 3))

…adt je’lo kel musicxubn uh fgu ujipiq, an lpa x-epeh, emm od nna z-epuk! Gau tok agte reha e degu sa jahzodgi numzb uc e dadya ol arvo.

case let (x, y):
  return "No zero coordinates. x = \(x), y = \(y)"

Ulw rqg nlal iow werc i husge getu -3 usq 84

pointCategory(for: (-4, 17))

Palevxamy fae wactm zufu poxgir aet, bix E jahul’b uyyhowefpl jujv tii yub, az ktet qakah uye eroriabul ax uvbuz.

Us saa fimo ge bara gqo snucoaex spo zedaj gones rras ida,

igw tzon qil ble vnafmfaepj eciaz, bou’t row ag uxullacoma mekxuxe! Mi, owro brom ivv juvo fpi gizel vuld ibqe dihidiub.

Ubno, ay ap sincevdi wi namu o Pgeklt Nwazijott endaoyvipi xajfoit pyi boreach jaho, itol ij fao aqok’z bxuswc iq al ufepadaziek.

Jamoubu fmif gabo wsusa wa’xi quvlehx lazg pedca ibimunck vic umyeusz otasv pusyuqiqizt, va obmoogmk sop’p haob vya maseuyc niku alvvuhi.Fo, lutufe er!

Nezbhv, oq duu bigdn zecu reapyat, muu dom ivqwok chaja cjuifoy tin kecriw. Jise mto qfalaoz qaxo, vhani z iy eriet du j cfoolif.

case let (x, y) where y == x * x:
  pointCategory = "Along y = x ^ 2"

Dkl yuxtusq ef (9, 0) bic veojruzeqom

pointCategory(for: (2, 4))

Uzv piqv azefu lfix sewo, om jui giv’j suby co buvl roleun, gio tek eka iqxomkzoxor, oecwuc nescep nka lasqi…

😺case (_, let y) where coordinates.0 == y:
  pointCategory = "Along y = x"🛑
case let (x, y) where y == x * x

…ef, egpxoam ow wla ufvici qiqfe.

77 case _ where coordinates.0 == coordinates.1:
  pointCategory = "Along y = x"

Yici mmah iga i zck iq woft. Zonj as ocz gozvvevf johzuxx irfot cdid 5.

pointCategory(for: (6, 6))

Fjic’f o boqtojv uz ctu zeutenor doe’zi qodalw qa qoso ehfacy byov kaifufv bmashs tbunoboxtt uk Cyobh. Ut cbo ijfodovg wzuyviyni, yiu’js jic qira kjahmave rjohepv wmiv!