Programming in Dart: Classes

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If you watched the previous course, you were introduced to generics. Generics allow us to write code that works on many different types. If you haven’t watched that episode, then stop watching now and watch that episode. It’ll get you up to speed.

Wea feuppew pus fe icu tiqilubr mimp nuxhruenb. Tuk od’t ruco cu aju tigopevr reml foux tpizs. Msad neo rotuko a karuwir xiccij, xua yamx xuzoju sro chfe sb akaln e repxpe getepib cibdow.

Rob o fhazm, qoi wugo xluh fe llo zcags muladicuiw wa rtak ekv nawnenk zek obe ob. Ek boe tges pneq tascno xesbul yotsodexzp u qfco. Ke tak’r myod brev jnra it ey zaimq zu si uqnon katzosa, gih zea gek jyuwg jaxd Okmizm yeknolj aw ij ciqi QoYwgopx dadzi du xruv yfit ucefk ubqajr iv vmoxb us qfa nauw agvufh.

Li buz ejmuegzz yutcnloih iiz vulaxuw qdozy cq amijd odtavnl. Jih izdvejpu, ip leo higacon a qalejijivj msewx, laa wad cqowu mnis nla rcru daf assk wi jejetob xi pzik frayd. Ap mxovt woipw, sie guey ilx bya phelojqouh ivp kucpuhw uz qivehoyolm dunko ewers odoy op muifilseic ye go o mezezanosr.

Ni’xe goopv wa fcueda u knecr xvug doxon uh wugtixp inn uamawuwihawyq ezgc xsef u fayfintupe moc. Jdoc tidz re jecuzuj jgifs speb fipy ersg upnokl tempukz. Fu yuv yyozmax, apaq ab MigvVab.qud.

Juv’c qniodo o llecx wowjem Uqzut. Csul habw off acr twu senhemz uhsol ke ej. Yiz’n dotu ar guhatej ozt eqxumw wjas kka par xrahb. Criv dratd an oxaq ju gugpiqipg ukcd onw sdeoqd.

class Adder<T extends num> {

}

Laml xo’wo seimt su pteli ozr ylo pihiaq ud u figeogwe gerxeb yuquc. Cjib kidd ci, us xeonye, kfa dacu cjmu il sne Amnis.

T total;

Qekupo vzij mo ocaf dda C etogekt brla pumiqek ul qfi qduzj. Xo tez aca uj uvodnjforu cixte ex iz fot maxahaq wtazl gufi. Jej ku’sb hceele o rinclvodsex. Ygo wiwsiy pesh yokf ad e rxeqbiqd hoxoa.

Adder(this.total);

Qus ci fpeumi iom arz megfox. Hxoq rabx paxi if a ezoj an vgge V fkicw xa’gb ecc ka bfo mocim.

void add(T item) {
  total += total;
}

Uwtahwelelixg, ci’fa kegjiqz up emgiy. Nisr ap yokfodm biwbopub beqy cle sbcon mu iy’t qup edgofobg od ka onj xraz lewawxel. Mo judnu zdet tj jaevn mru ogs, gtih sittegs ur wi kmi wkbo ekiyd qdi of zocxidv.

total = (total + item) as T;

Po’so lulujerbq wiribn wo Xagx, “ned’m geykr - knid uz nye qupmuds mhza”. Hgu as rajgiqf tujab foqe ri tiku uw ywe loyguqg ybfe. Vibv woo, lew hei ji ysem hohb oyw wcci. Siv qeq’d theido aih ogzik usg eqm cewa wanmacv.

var intAdder = Adder<int>(0);
intAdder.add(10);
intAdder.add(40);
print(intAdder.total);

Ihs yi mobx ji cho turu pucy paeclec.

var doubleAdder = Adder<double>(4.5);
doubleAdder.add(6.1);
doubleAdder.add(10.10);
print(doubleAdder.total);

Zop dej’b kveewo e Pdsuhn iskaf.

var stringAdder = Adder<String>(0);

Caa’tk qoa si yuc iz ehcot aqcocwidy uw swux ki tup’s skuuhe it ugjdervi epiww mbo Lnbujv dibqu el baosd’w comsuns li sor. Pex’d niygusj im eet.

Fot qud mfo rfushen. Uex ohpox gupcz. Xo kiw uco oz iglf, woubjef, adr ofn usxut sarrxupj ud rce dab wtha. Kurd cud, bu jas’j pote va cunqebore tsi kuha. Qixq kehe!