JS foreach into njengoba samuntu

I-JavaScript-syntax inikeza ikhono ukuhlanganisa eziguquguqukayo ku afanayo kanye netintfo. Ukufinyelela izakhi lungatholakala nge izinkomba kanye namagama ngokusebenzisa opharetha umjikelezo.

Kodwa akulona njalo kungenzeka ukwazi inani izakhi ukuqoqwa ngesikhathi design isikhathi zingavumi ukusebenzisa i-syntax enikeziwe engasho lutho ngaphakathi kubo njalo.

design Classic

Jwayelekile iluphu isitatimende "I-(var i = 0; i

var i = 0;
ngenkathi {... aData [i] (typeof aData [i] = 'licaciswe'!); ... i ++; }

lapho inani izakhi alwaziwa.

Ungaphinde wakhe algorithm ezahlukene zokugcwalisa futhi afanayo ukucutshungulwa, kodwa zibelula ukusebenzisa entsha, ezahlukeneyo yesimanje.

Classic ezinhle uma udinga ukucubungula imibuzo HR (isibongo, igama lokuqala, isikhundla), amakhadi ngoba imishini (imodeli, umakhi, nomthengisi, usuku ukudayiswa), kanye neminye imininingwane ezingenziwanga ikhipha ukushintsha futhi bamele isithakazelo ezuziwe.

Lapho isici afanayo kukodwa into noma isakhiwo anezakhi ayo nezindlela, akakwazi ukubhekana zakudala Dynamics nangohlobo, futhi kuthatha ezahlukene incazelo afanayo.

Foreach iluphu

Dynamics kuyinto izakhiwo ezibalulekile afanayo isici ukubonakaliswa langempela. Design JS afanayo foreach, e uhlukile evamile (yokutholwa ngezinye izilimi), inguqulo, kusenza ukuhlinzeka amalungu afanayo ithuba lokubonisa izakhiwo zabo ngokusebenzisa usuku isici sakhe.

Ngumuphi umuntu afanayo yakhiwa umgwaqo (izici zabo qualitative ambalwa), kanye nomunye afanayo - izimoto ukuthi angahamba kuphela emigwaqeni ezithile futhi ube ezahlukene umthamo uphethiloli amathangi, isb ibanga phakathi izithako nayo ibalulekile.

Ngo i samuntu enjalo algorithm efanelekayo kumelwe athathe njengesisekelo, isibonelo, umgwaqo bese ukhetha izimoto ukuthi uzokwazi ukushayela kuso. Futhi kungcono, uma umgwaqo futhi imoto, ekhuluma ohlelweni njengoba izinto, "abazithola bekuso." Lolu uhlelo lokusebenza yemvelo lwezinhlelo into-ngamakhasimende, lapho, phakathi kwezinye izinto, akudingeki ukuba ushintshe algorithm ekushintsheni umgwaqo nemoto amaqoqo, ngokuzenzakalelayo ivala isikhala ukulungisa umgwaqo, ukugcinwa imoto nokunye

Ngokomthetho at JS foreach isakhiwo ilula kakhulu: "aData.forEach (fData);", lapho fData - umsebenzi isetshenziswa elementi afanayo aData ngamunye:

ukusebenza fData (inani, Inkomba) {sText + = Inkomba + '=' + Inani + '; '; }.

Uma idatha yomthombo elabekwa kanje:

var aData = [1,2,3,4];
aData.push (11);
aData.push (22);
aData.push (44);
aData.push ( 'umugqa 1');
aData.push ( 'line 2);

var sText = '',

umphumela ukusetshenziswa okunjalo JS foreach kuthanda:

"0 = 1 1 = 2 2 = 3 3 = 4 4 = 11; 5 = 22, 6 = 44, 7 = umugqa 1, 8 = umugqa 2;".

Izici Array izinto

Into ku-JavaScript - ekhethekile. Ukusebenzisa izinto ngalolu limi sihluke kakhulu implementations kwezinye izilimi. Into - lokhu kukodwa kuyisizathu uxhaxha izakhiwo kanye nezindlela. Nge yokugcina empeleni ukwenza isenzo, ekulondolozeni noma ukuhlela okuqukethwe yayo noma ezinye izinto zangaphandle, afanayo, eziguquguqukayo.

Izinhloso bengena behleliwe njengabantu abayakulwa, ozimele phezu umucu wefilimu, lapho ukuphindiphinda e JS foreach into izakhiwo akha engasho lutho entsha: ukuklama umqondo onhlobonhlobo.

Ngakho, endleleni bebodwa abakghona ukukhetha imoto ukuthi ungakwazi ukugibela phezu kwabo, futhi ngosuku lokugcina kuhlungwa imizila etholakalayo. Uma ungenalo unake, ukuthi komsebenzi kule inketho izinhlelo ikhodi okuthembekile, umsebenzi - ukunquma indlela kwezidingo - kwenza JS foreach ukwakha isixazululo okunenjongo futhi ilula: ukunweba imigwaqo imigwaqo, khetha umshini nokwenza ukulethwa kwezimpahla.

Uma imizila, imigwaqo kanye nemishini - afanayo lezinto, algorithm lula kakhulu. Kungase kubonakale kungavamile ukuthi ukuvela JS foreach isakhiwo inqobo eside ukufika. Nokho, naphezu inkimbinkimbi iphuzu, practice kunzima ukuwenza asebenze.

Prakthiza JS foreach futhi ngempela izinto

Ukucabanga kunjiniyela yesimanje usebenza nge izinto ajwayelekile for uHlelo, kodwa hhayi izinjongo inkinga yangempela. Hhayi elivame ukuqondwa yilabo imoto emgwaqweni, umzila, ibanga ...

izinhlelo Into ngamakhasimende uye savela izindlela olunameva, futhi ngokuvamile likhishiwe ukwakha afanayo Uhlelo into, amafomu, izinkinobho, umzila Ukukhetha ibhokisi, njll

Ngaphezu kwalokho, JS foreach kanye nabanye kwaqanjwa ulimi wenziwa kusiphequluli yesivakashi okuletha practice ezisilinganiselayo. Akuwona wonke kunjiniyela silungele ukwabelana ikhodi yayo. izibonelo ngempumelelo ukusetshenziswa afanayo namaqoqo tintfo mbamba - kuyindlela enhle yokuthuthukisa ulwazi.

Nokho, ukutholakala-JavaScript code for okungahlosiwe ukusetshenziswa kunjiniyela kunemtselela engaqondile on ukuthuthukisa imibono esithembisayo a izinto onamandla futhi bomhlaba wangempela. JS ukwakhiwa foreach akakabi ephelele, kanye nokuthuthukiswa engasho lutho yabo ibonakala isiqondiso ethembisa kakhulu.