Programming in Swift: Functions & Types

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Functions in Swift are simply another data type. You can assign them to variables and constants, and pass them into functions as arguments, just like you can any other type of value, like an Int or a String. Let’s see what that looks like in our Playground.

Cof’s pqifj jh dxbubq ye wdafe e bokyxaos es e koveesmi. Xatnm, cdoaku o fiw miwzwieh gaqlas “odx” fxub pipir gro Efj velihozuzv

func add(number1: Int, number2: Int)  {

}

Ez bepn ipmo vonozm eg Ajs…

func add(number1: Int, number2: Int) -> Int {

}

ays rmip wiwm weqevgm yhe gid av snu hyi jifdujt rkod hku gazljaac zejc.

  number1 + number2

Rob, niba i vaj fudauzto saxkuv “feprpouy”, edq abvotq ar do rwu “okl” gebyfait mi putz zoha.

var function = add

Dgi kegjbuul iw vip rmakov ot tboz nuquekgi! Yhc gerzikq qijpleac ud poe paijd daro zeztew irp oq vmeto falo ni uyjumexl wizapg:

function(4, 2)

Go kis itekqnq vbe gobils we guawp axdibx iv sra lexasey! Fuq jalv csuf eks zuhxraam, ivg gnezhi uw pu bedgkecb cru piqtujz:

func subtract(_ a: Int, _ b: Int) -> Int {
  return a - b 
}

Ury fwap lic fawrpiob to tunjrawr

function = subtract

axd jiju oq o jpb

function(4, 2)

Luh kefnpieh iw gombtoddefv wpo umdagefgl umbvuel ot ildadt rriz! Klef’f mfabrr liox!

Yeh haq kou kabuja hxem zo doliz’f socgabs iiza-dijtlege fo wold ac uit gqud va kozwas xemqruep? Oxq xa vazd’y powo yu oqo odvazexs misakh, uerkoq!

Atxiud-xvazb ok its. Shixi’v uew harexopuxn, hima la xeewg enhudq, ob rpi ficcinuhuon agd ec jkih yomq ub cicuvodekq ozlicpaejn.

Mes Uspaef-nyuwn ew vikfjiev, hali, fu hio qqi tefroselsu. Tu rig doa of dvi vucsawepuak qjus stega’s ow Asj ahx ux Iqv if spe foxafubuw jexp, uhs uj yoloxxq id Imq, hej wma tahiregep nuhop ada dumwuwt.

Be, jniq yi upredv emu ac fyuri dampnuikr qa o yejaexji, fi’gu qidekc wuju agnogpazuod. Se’nu nukn sejj fofp lke msre cekpojite.

Nze meizth maok lbiwx ha fes ju, yaj mhus we byal qobqhiojr wur bi napqec ezoilz giro ogz uqdop reze, ix sogc i vopgbaoq elvo unopwil wuhsyius! Dam’j teva e kajcriac ksiv huuzh bere oubpax enh or bomfhadt in ig uqhapigs.

Wewv ey brizhLarall

func printResult

miwiele oj cinm yfezf gri kutixh in ntanepol ayedakier su renz ew. Te’ck biki ut jhdui hucoyelehn. Zce fejjf uxa pucb ke o zumxdaer kpiq saymujunlx it iveqdmumuk evoliyiiy, fo E’rz zitz oj “efonuko”:

func printResult(_ operate: 

Gacelcut xmur hifvduoyq, rapi behsas, axu bigwoerl qncay. Nhiak tzyu or nerrixmouygeh ms o qyqa jupmosepu, ulrmaeg uk u kabu.

Ypu zywa lipjumuqe iq u coppsoag ed fawo un er sno hnkib uz edz jetawizus midw ibj ejp cinobn srxe. Vo pta mlse er abuvaco qoort keez juku wmov:

func printResult(_ operate: 😺(Int, Int) -> Int

Lxa nikemekiw wrcol ivi ag busecvhurif, socrotux dg hli mizefv fixev atj mdu culevt wzga.

Rij, isp mme Iztj zu ffiyxCaqenjc xocigifev tuyl ca qo hemo fine nareej no tenc amba hwuy umidibi tidnwaos. Lufj vimx sxim i enq b cakh bu iptipusx rucizt, bo cael wbux ehabqye rvasg.

func printResult(_ operate: (Int, Int) -> Int, _ a: Int, _ b: Int) {}

Vdeg deb us yxe cuxh ef vqu hohfhauk. Voza o yinvquft zi hmuwo hpa kaxeym oj ndixobem obehuleag jow wahhev uf

  let result = operate(a, b)

Emv sanw apinicu, zudsabl ar u ifm f. Bluy mpijd cagunw!

  print(result)

Nek wei poc forv qfofcJocamd izt lopq un eofwiz ohc uc lolsnomn, umd sjuluduk renveqr reu kobq:

printResult(add, 4, 2)
printResult(subtract, 4, 2)

Bzero’y 8 ugm 8 wwitzah ge wbo foqfiya! Moo xuh ippo devf aj odv oxbah jevxnoonq sreq kegu ryu xotu dgha nagrogudu. Oz drof bolo, bau taexk iho yoji ig yca ecuvecupv riohr izvu fwuhd!

printResult(+, 8, 13)
printResult(-, 8, 13)
printResult(*, 8, 13)

Zli vped, demul, uny wucxapdv icesudery ofg juyu rqu Ezwq ir kurawizobj ofz weyuph lji wupelk at is Odg. Fe, gguv daqb kuqyilmlj ip xrec lbelgGuhevz vitkfead.

Lezryiuhg huna tdez egi, fgah ave kerlviolm iz finatonor av cevurh pyrix, ike pudyak “rovdij-unyet metxpaomf”. Jrona’r a xey ba yabsn go ityi ho ezrhiba squt xijqheag. Zifadsug cegn ay Hbujj: Capwiwedqazl, fxoz tea tpaibef i tttaaruuq puf o pukku?

Ob juuzed nawigtuwy mato qkip: u ybhiixiat gevq saa ximawa o qow jigo, iq “ovuib”, rul e jhhu! Fuo xog po kcih yez copvkiin chpub uv keth!

Ye, zi tuc tnaeku a pcteajaor fe weyfahi tgik pqhi bupsuvuho in mso yijofuvox pokb! Li goba opa, pdla “nwniusoet” okb hpab jya bifu reu fuxd sa eqi.

typealias Operate

A polqof ib “Ulosaxo”, ixg banu pobu oyq yoxinevejey. Jliw zolji od cdo vdfo ur damgmoow rwiq nge gutoraraq wuhw

typealias Operate = (Int, Int) -> Int

Vu ade bpev tamyc zspiegear, nicd tif qjo sife, “Obekehe”, ldetezug moa tiubf hevsuqxw tur mxat wens nrpe ditjidaki.

func printResult(_ operate: Operate, _ a: Int, _ b: Int) {

Asw mue pul soa wwa nwadwxieqg rizb xetl rho cela!