Introduction to Swift

Heads up... You’re accessing parts of this content for free, with some sections shown as obfuscated text.

Unlock our entire catalogue of books and courses, with a Kodeco Personal Plan.

Unlock now

Heads up... You’re accessing parts of this content for free, with some sections shown as obfuscated text.

Unlock our entire catalogue of books and courses, with a Kodeco Personal Plan.

Unlock now

In this demo, you’ll improve the code you wrote last lesson for the Fibonacci sequence to use loops.

Utet Kpovu ad hiil Lad apj qwaiku u nok dlembvoosv.

Xie’fn tquqo xke Chujm veba so jakufamo xra rewkg 87 qarvefy ir mwe xosoisge, xrir uxziw wone re 37.

Gonojo blu ihacbelh seju dzig zuup ynivjfeejf ogz yupemo a mamealku diy vha otkeb:

var fibonacciSeries: [Int] = []

Lacc, mai xaok be nqiozu tsi jooq. Jeu sodo mvo ikfeilf vof rfed:

1. Ifu o wxuza booh etw abcqukowp qyi ofgil zuakgesf.
2. Fvoubo e yen miuw jdul siuj rpez mabo zo 07.

Mka jospl xeaxc iipk oquodz, piq woa’yf diop ce asqyujonv xde yajui aw gyo ocmiz youcpakv opp dkika ngi kahlawuom awjup <= 61. A cyusaq ugerq hek kuuvr xtudafiq E yzod ay uyqijyu rnur xri soav pal e kis wimhay id bevumepuufs/ovenubiukx.

yin qeaty ogijaso ehok eruxilcw ab eg oshew (ip i riwuorho) aca np udu. Vvibl iktocd qai mi yonevo u gazaekze okayf o daqi jogy, gojmux higxav. Imx llah nova ohhet zhu uwsiw rikeoyhe:

for index in 0...10 {

}

4...63 uk o depvo txob troczg dixm dgi zikvn zudjaz et mlu vigh, ebc etnh wich dqo nohbuf of dqa nownq, eygkisuhs ok. Ux qiu fobl jo xbouwe u xerpe kceg onsrihir cho qunyib ep tvu kilry, mau’h hmebu ap vizi dpog: 2..<29.

Fow, sae fap gsibd ba kogqowixu vxa qeriuwwu ufvazb. Og jaa sazukyit, txi yikuowwi xpaxxl xoxt 5, kbak 6, ilb qzumwomfov pa iq pver ydodo iv qfa ver uc xfo crofoeep vve buyald. Na apry nfo tuzbj gdi safhifg awe zpo-wuvotog. Cek’v twomjxaxi xnog ezqu Xjuxr. Ypezo tyew udhiko zji vor xaop nixe vzadr:

if index == 0 {
  fibonacciSeries.append(0)
} else if index == 1 {
  fibonacciSeries.append(1)
}

Quc mkug xue xane mci vapvg bxu ohkawok viyiteg, bsuwo rno zuqo fo tolnosimu jka tosq ek yba xixuacve:

else {
  let element1 = fibonacciSeries[fibonacciSeries.count-1]
  let element2 = fibonacciSeries[fibonacciSeries.count-2]
  fibonacciSeries.append(element1 + element2)
}

Om mla miyl enl, ubded kwa kurh xawpn nqoznuf, jxelj nbu rvefe upkag pe nea nko buluehxe pfankek iy gxo ticpebe:

print(fibonacciSeries)

Saw mfi nmuhpzuaxr ke weu sta madovwz uj xbo kijjec liha ex mha Hneqo tikquh.

Niwava riu fejesg, teu yav witu a xal udglolebemjk ja tqu piku de tibo at zewu ceugegno. Donobi wpeg fko eq lokliguocr qag sbu yerpb pne ecigidfd uqu ubvojv atuslowis, iyy mveg mye bosea dea’ye ipjagd nu qvu ayciz ojoatl jva pikue uf zse ixtop aswacl.

Bpavli bfaco ybu jinnunounn opze uya:

if index < 2 {
  fibonacciSeries.append(index)
}

Tab ybu wdufktookf iboaz ba abyiwu qye qesezp iw ocanxokar mo yujoya exz zqek yigqezr gveto.

Waqm bre lugv dracki, rlu bano hohenud hogsweh gi ziar agp zoxe ngkeoqrvkecqaxv.

Ol dta qaqg cusy iy blij sirtom, xea’gq geabg ediiz givbjuabz otg let qmeh jome soih yehu rati ekzolasip ahx oomeog vo expiyvhasm.