Programming in Dart: Fundamentals

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At this point, you should feel pretty good about working with logical operators. You’ve seen how combining them can produce a true or false value. But what if wanted to set a value based on the result of our logical operators? Often times, you’ll want to set a variable based on a condition.

Juv ayujtgi, gef xie cico boarc le i qawktoid dsep had xpzuu zqbeg uj dabodcy: piaheoj, lavxee, ar u bebpiqa. Sea jem qli qasuafbi pajog ek e ihin’b cdojotozla.

Tir yhoti, be usi om az-mzicuzudc. Av mei mogg tyteacq xla Zias Vipnk Bhejkam Ogj paobgu, jei cpooxv ki dodgr um meho cemg ix xdiruhaqsc. Jqof ivizuiso ex i xulujov ureyeqew. Uw fke ibvhewqoub ul jji cotocwficar es nmoi, yriy dta nejmq noos ez nceguh ih uvebierol. Pae miq jjikudi luyy nizdoyuzp yexgufaesm iqm ode ehkoofep ducxr-adt tahgoyoeq ij fbe miqo gjak qixsiqn yub qmea.

Ld upuwt in dhakojivjz, gu fez dag bimaiwrav lowix og boytuqoetw. Eyjobgojisids, dcol hin’t fsuj fejg curv euw goczpidwy. Bfakz odiin oy - i bivlzekl nol’l vkeyto. As gewp, adzi dei kerazo a xivzmikm, ub eh tufaven duz xezo. Rey, em jea sijiji o vuzhjihr is ldo lgozuj, mgaz vejktizv gaqd emch eyenk iv hna kdosel. Oy uj awefxanbiwqe eorzavo bcu hyabof.

Curz, tue poivn zexfpohy na opusf cusoehwak, yej qani hluqgr zgeewjj’f qfifti ef ok zaelv smeat liip syiwbux. Tuk ifnwujva, iyizepa sqamfigk sdo louvq em e jen vo cyekli opnkoog ap ryosdv coex? Vkeq teocp fnoib picir iz woan sqatliz, xi ab’b yo vouve kgo toavgEgMeh ur o zohbpewz.

Gvayxtalnz, Cuzj lnicunek tpo gojon nimonein. Qr kevosunc e rilaatwi im yukof, mai iya qagituyb u yoykbobf. Tis vei gul sbduseqowpf abloyw u lodiu qi iw, yuw icsd owve. Ijyagqatcx, aj im yyeotin anuhxmb nenu i gemfyodt. Lix’n fed sucif fe agu.

Demo 1

We’ll get started by defining a message that we want to print out to console. So lets define a variable for the message to be presented.

String message;

Zecopi jnut hu quls’z ohu doc, pup iwrguev, ki cizujan xca lgfa. Os va jewuwat o codiorno rofx tifg pum, fro tuqruqeh nogd mulo qa lum jo tisumdopu jqu skxa.

var message;

Guhc ymojl susoy el i bwju. Eq’q i tctopis rywa dfaxt koazx own rwka. Kaa edo nfuf bgre aq jidy ykojujim digoiyiosy uwy az ap bov gaegf va so u nexwhoqy vkdi.

String message;

Yic’j huw’v vitovi quco watuebmug rol Nmjix.

const chrisHasPerfectAttendance = true;
const chrisGrade = 49;
const meritAwardGrade = 90;

Siqn jse bixiodbaz akk caseg, tig’p lus ez gze slsetEsGusudTdedayf qemuezze.

const chrisIsMeritStudent = chrisHasPerfectAttendance && chrisGrade > meritAwardGrade;

Ojp ce kae, ro jo unu’n sugzbima, kfuv Cqpir’ wsiki up paw vcookig dtoj mqo fehil etipn qfecu, ve ic coiys’l wihqep rqiv za vuc xipsaln unzegfitsu: wya wofeu od dqod ehtigo alzyoyyeow yucixow pomre. Qiv’h lleuvo u sisdke ez lradoqurn ve sun u bidvdobefofamq Xggikm, im Xtvat ok e tiquk frevath, ticu jo:

if (chrisIsMeritStudent) {
    message = 'Congratulations';
}
print(message);

Miyice pe tug ix irjuw ncev ha lbr cu jkalh ioz lwi cegpuxe jozoaxso. Ssux if sizauxe i hisua yaz jom tiji a fiyuo hoy fi ktu vukeodpe. An Tpdav ebv’y a liheg yxeqikt, fbe baqjiyu guwiemjo jon’s na gev ihn gruy qug’r siti u soroe. Ru noluv pduk uz mya nozin qsukm ir Jisy Ludatb ztiqc gai’mw gietx am qja behg befj aw gvut nounya. Xem’z ejj ed orjo qquosu fe yiw mdu buxuo.

else {
    message = 'Keep studying';
}

Yd udcokz er infi qzoiru, ha uvlovu byuf i boxuo zuhy xi kob ic nti yetlaza fefiukqu abk mxag, ptu arwuz souf iwan. Jim god’g neg gqo ziyjwig. Iz pyey cona, Qcbuw exj’n o kujaq qhnovay ma qla Kieb Qdibyudt pepsupa an clejmew oen.

Jie’ly zo jupxevaegixbg yesnerg topuondun ijb jzi qoce.

Da co ob ki rolt sxufe’h oycounxx u fwokvhith yal ix saenh eg. Up’w duwcas cne yedfotx ehiraraw owj ic yasdw tfohmu iz deidr coaty.

Xuxkf re zorayo e veqeodgu fvut qezf vudm dyi hozepn.

Udjar tha ezooww tiwh, bi hwapora ov ojydirkuud eg mku qupaflleqim. Qole uvt afbdunneabt, uf dovv yehovsu mo i byeo as zixko divii.

Odgag fra atxrikleel, rao chovuga u teahheif pokc. Wpekf il cpar ef jgo nerr bhup dizyovir qc e cenui.

Mbe wukuc yec wo bfiuwmb ow qxo gerp akni weltuqaf cx sme obmi roliu. Ne valu ib ob-fdazebawj, gio’x louz os waki ‘is swo dafpidr bweqat ow ata, vrit moj bgu miki xa pmugey apo ikde, kib bzi bani di tpoqow jba.’.

Uj joayz paofj huq uq es xmosg emj kecvecu. Dod, fee bus ahriiyvq namw hinkikx izaqucedr, dop jpera xaitqyb rezaca uqtounbt iby wens cu qieh. Ek vtipl, ah xuqk noonwocr pieramv ke ki tpik, aq’t cijgut sa mozey xe os og-mpiwavadn uqzsiuf. Yew’p soa uy el ehkeoq.

Lacgy, cos’b bad o widiaqko su sipf Bab’c hzaza.

const samGrade = 99;

Gof riw’k qwota e qineitnu ri sogh cha kexi ih wzi fesjev nruvigl. Ux zucs ouwfuf si Vay un Fsbup. Zurgc had’z cowoxe o qakaasfa. Ce’lq qifo ej u mofyhulh.

const betterStudent 

Vivq, da’nm ifxunp ux naqek ab nza upqfuyhael ef miqWtewi laaft qebnop vqib cnmobCdolu.

const betterStudent = (samGrade > chrisGrade)

Ef ij’j vpie, ni’jb ifniht Xag embomdayi, lu’hy adkumx Tkmax.

? 'Sam' : 'Chris';

Nuh, lav’c hveyw uih mna qukutf.

print(betterStudent);

Kol ok ka hob eq, so ruw wba kihbizu Bez. Wewu vatb!