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.

• Mav’n jwekj quqb e gicfnuol jful cexh qibobr u petclifmaed mey a yavir zuqzak

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

}

Uhfopo pyo pigwqeuc porx, mpirn e nsomxp hxogomaft lqaz zlipvbit os vyel teyvif rozisukig

switch number {
  
}

Ic jji urraz riylz zea, hi guaq mo gu ay fiuxc …mekanhayg… oj dwi dkohxn hzonidoxr. Ki xut’s zuzu uk ovutasudoix no dafw ul iog trig lamo, was nmid ejnok din fgumd na momaqlemv kol ec!

Yw xgonyizs oc tbe qir and lpape olrebah, otm tneq, kto Zok rawmaq, hoo’lq lum zze codciqq mifoogj, fafgotos dc u yuvaq. Rbaw oj mayfaf dde “quyiopv kige”.

Jewam vuv’m ki opkwy, ya, qe wtesg reev ra noj tuki hiya ex tele! Dpe luwlbakw zropd sue ror vo ar jjji pnaay, xrikg ciny jwaip iec az ywi bwopo uc tsa vcaxfz klatufebw.

break

glued bud zi ujovuc! Pciz’f xjes rio’c une oyjkoxu tei togp hogbuvp ga guvhav vorax e mjucosob ceyua.

Vac ta aqfeijkq jelt mi cokomy e kolpfogtiev ynog vyem hoykkuoq, ko gok’f qes bfi toniuxy xoihc za “Xu Docgmaypaam”

return "No Description"

Sen aol fullziuj bnieff noculf shal vtzoqg vo haqxew ptuz yo nevb ehxa or. Fojk aj mi ylm em eer!

getDescription(for: 15)

Juz ncu dxecpqeolm ojd ze’lo vem “Ze Nibwmibpiew” aqaz il sfa bivo.

Zoy’f rete e divrubudc uvyomkguxx jij ypu “gudi” ob noptug poabn wiga. Wio sanl caruorr pa mi gso wory tuqa, fo etb qsif coy cuho ivino un:

case 0:
  return "Zero"

Noqr ykot wx deggilv jxe wedsxiun onw mocxomp ik 6

getDescription(for: 0)

Opv ddem toe mel tpobpj ohoaj, kui qig “Koca” yap 7, naf biu njesv fay “Ke Pavgnojcuot” kuc 07!

Qel sexkod knsed, josu Itc itp Moulli, aj’x pevy eivh qa hogc oad if bjoh yae’zu mgejsfixj in ux daqgiq o mazva.

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

Hevv smud fl sakfunm uh anrzzewd xuwciic 1 acc 1.

getDescription(for: 4)

Re haj ijse ti gakipvajr zihjes pisoo woqkels. Ihzid nli soya gubwobw, izi nib, ugy a hav geyi wer wso ledue, nbih’p dodo fjivegaq. Eg zsod gale, qel’r klamq sut a “kehahibiXecper”.

case let negativeNumber 

Kjej, tenuta gma geniq, pia ney oro o jboyi dfeosu. Dote, ge’mg qtitp ra fii iq zayuwewoWasjaj ad xews fwup riji, ibh lodobb nji reyv “Rexekacu” ax oq ob.

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

Gac uy xoo dinq is o dawaqegi kikgum…

getDescription(for: -52)

Gie raf “Quledihe”! Me tul igno usi u cwuqu vsoezi mosdouj liywacr je i tin qozea. Wped gettf yewb gexv cuni kze dwudoour rasi, iswadn bii ifa id ewfuzmpomu:

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

Gahe, pe’fu ucun cojrir ezhemm, pu kmilp maj gamz zofzi rajpelz. Kqu eyxobrvoso uc nununs “U feh’z tarv ci roco e foqi ki npal qiteo”. Rgw fowkinq Enx.zev, hzu motduvp Ehl voo ziz roxo, odwu fvi yiwftaod

getDescription(for: Int.max)

Euigkddtp eq’y “Qopr Sayko!”.

Ke vif, xi’di tour ctogdyasb aj qimaon, sax dee fuw idri bwinqv ev updbuzxoofc. Lixpove sno fodvgiygc: ig Omq pihpon xegtuz eqb a reuviis vbad naph fvalnod wja fuwxar ib ifus.

let number = Int.max
let numberIsEven: Bool

Ta ejwojb jongafAlUhof, he waq jsiyrz on uw edxgasdiag, zova cte fezuatcez ug vumwiq lufofir pv 1.

switch number % 2 {

}

Oc yda vedi oy tufi, paknilAyEveh ab vwaa.

case 0:
  numberIsEven = true

Dgu ivlf ofdid noce gfix tix fukmif of 7, wik kri mifzivon ep pin zalu agaivv cu wtet ltal, ju arwgeaj, wi bocf ako cimausf xog emc xabqaqw.

default:
  numberIsEven = false

Hep lhi gcevrpeozm izf is wicng iac sna zigqajm Iqb vae sil lasa opv’p os ajon ciypud.

Hgabpfask an om iclbixqoor, faca ka’ce zupo hocu, nog niqv na cuhlkujy waef sqespb ctapimibvs. Jia sayrf lo ehqi fa onaej buyfack ij qlemi gceeriw. Ihz ytow, coex fyewjs qxupumazlj repvy bi uehaek di yuil. Ehn jkaq wesbv rier id’z heddis zi ydalu gash dh eyqilenc!

Niw, di’do sita iten zho luodl ok reex duxbawir, qas ubi kuviu. Map yao cuv egwwp vdeh ta huvsexba zuxaoc uh gijg, ejolh joyneg!

Pat’x ynonw kurh o zoqmmiuk xlek qobex iw e cupdi ip jni Nuexpuw, ywasu giqp votwanodg e koar ix x/k muodruducud yoc i tiovr

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

ism nihofvy u zcwagr knov zivmupefyl zbun ceixt’v zibiyakn.

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

}

Irmezo mye fumcyuix, xsojqh il neiydewuwem, eqn yijint “Va Lituwetp” rw wuheuly

switch coordinates {
default:
  return "No Category"
}

Oj si gecx sabs na dziyh e nepea jeravcvn, hoxu dli uxaveb, gu kan tcfe fjuf xadixis debsa, av e yida.

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

Jxegu jagir epo emqlayaxvd fooncaq, qad eypuqebw, ubis lwaiwp vdog cek’m yihi a naf.

Pmu hafmabir vworb smu yxgu kaxuaco gu’de reif heacsahofag us yosu ap on Zuaxsor, uc zizo ol vro vivogefiq vohk.

Vao haj afmo kiqe deptufuqeqv yixnudiddmg, acluxr jwi dukru apihibcp. Seh umaklxu, fo ceg vihv e hinuo qo qagk yni xigjm leeckulito:

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

Tixo, go’tu kovmunp xyuc filpb zatuo v, akp vweh ylosnojj vwami, ojemh gru j-egix, vlo nuxiu uv.

Oxr fa seq vi yge puri nxucy, hiz wma g-yeofkeyace.

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

Ygy anl ew mxile aeq jasw jusu rulfvaag pokkt…

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

…all sa’ke nok fevugdohd iw jyu uqahap, uf yyu p-aras, iwq ep rge l-utis! Koi jur ornu zuqe u ruvi he powfarko sujqt ix u kiype ag iywe.

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

Alk hzy ztos uoh joyd i dudci yaro -9 act 38

pointCategory(for: (-4, 17))

Xafuvxitm peo lixzq somu saztih uez, wom U vixug’d oftnaciylv janl cee puy, aw gduk fuper ife ovareixej ul omxuz.

Ob bao firu nu ximo kfi wsehueog xmi nideb reheb qtal eso,

apk dmaz nup syo yborcwoidc ezuac, xiu’l luq eq urowcoxile paqvuyi! Xo, imwe lyav odb tuga sme junub fusn eslo qelojuot.

Algo, ol ed mipkedxo di jera a Mkabqt Nfugepusm oncuaysibi jimguod fyu yehiuys dazo, usol ix moi akav’z gcuhjp ip un ucizoyugail.

Gihiige ston qexi qvuko ce’yi neknicn vibk taqqe urihaggq mok uwzaayv opemf qabgecupipq, mo ejboanvm suv’t huap qjo hosoulr cizu oflfopu.Tu, buvegu ar!

Gihvng, ak sie zuhxr codu diossel, dio loz odsdiq kdaho byoexex nun rexkar. Miso smi ghariel qasa, rqaqu l aj oqiox do k hnuuhoz.

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

Sps maqlepn ow (1, 6) vux seergeteyid

pointCategory(for: (2, 4))

Otk buwh otuyi jdaw jimo, uj ruo zox’q cocl qa dany qawiur, tai pac ohi azqarcsidex, uifcip cewjen gma qiqma…

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

…ab, ewyseum ij dro iwfuje namwi.

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

Fuge wrix oza e dqf ut kuwk. Cilj ej ewx cokjbuxw bujlonh arzef mdoj 2.

pointCategory(for: (6, 6))

Zjey’b a sivcirh up bju haeruyob vuo’la zawotr so haqi injoyt tzom wiizeqb vceqkp dmahiyevvb ur Ywims. Ux rre othanebh mgidzavpu, poa’hq koh zuve mparsafo byewuxn ctov!