I-React.JS yama-dummies aqalayo, isebenzisa umtapo wolwazi lapho ibhala amarobhothi okuhweba

Iyini i-React JS yama-dummies aqalayo, kuyini, okokufundisa, ukufakwa, imibhalo – indlela yokufaka nokusebenzisa umtapo wezincwadi we-React JS lapho ubhala amarobhothi okuhweba. Ngokuvamile ezikhangisweni zemisebenzi zochwepheshe bekhompyutha, ungathola imfuneko ethi unamakhono kulabhulali ye-JavaScript. Yebo, futhi balindele ulwazi lwe-React hhayi kuphela kubathuthukisi be-software, kodwa futhi nakubahleli ababambe iqhaza ekuthuthukisweni kwangaphakathi kwesayithi, hhayi ukwakheka kwangaphandle. Hlobo luni lomtapo wolwazi lolu, yimaphi amathuba ewunikezayo emsebenzini, futhi umuntu osaqalayo uqala kuphi ukujwayelana? Ake sikuthole kulesi sihloko.

Umtapo wezincwadi weJavaScript – React: kuyini

I-React.JS iwumtapo wolwazi wolimi lohlelo oludumile
lwe- JavaScript , olwakhiwe inethiwekhi yokuxhumana nabantu eku-inthanethi i-Facebook ukuze kuthuthukiswe futhi kube lula inqubo yokuthuthukisa igobolondo langaphandle lamasayithi nezinhlelo zokusebenza – isixhumi esibonakalayo umsebenzisi asebenzelana naso. Isici esiyinhloko somtapo wezincwadi izingxenye kanye nezifunda. Ingxenye iyingxenye yesethi yedijithali enesibopho sokuvela kwengxenye ethile yesistimu eklanywayo.

Qaphela! Izingxenye ezinjalo zesakhi zingafakwa isidleke.

Isimo iqoqo layo yonke idatha mayelana nemininingwane yesixhumi esibonakalayo, okuhlanganisa nokumelela kwayo ukunikezwa. Ngokusebenzisa izibonelo, sizothola ngokuningiliziwe nangokucacile ukuthi kuyini. Isithombe esingezansi sibonisa ezinye zezingxenye ezinkulu – ukuthumela kunethiwekhi yokuxhumana nabantu eku-inthanethi, isigaba esinolwazi olujwayelekile kanye nokubonisa izithombe. Ingxenye ngayinye ihlanganisa izingxenye ezincane, okuyizingxenye. Ngokwesibonelo, okushicilelwe kuqukethe umbhalo, izithombe, igama lomsebenzisi oshicilela ulwazi, njll. Ingxenye yesithombe ihlanganisa izithombe ngazinye, futhi ingxenye yolwazi oluvamile iqukethe ulwazi olufushane.
Ngayinye yalezi zingxenye (izingxenye) zinesimo. Okusho ukuthi, isigaba esinolwazi olujwayelekile sizobukeka sihlukile kumadivayisi ahlukene, into ethi “thanda” ishintsha umbala uma icindezelwa kanye nenombolo ebophezelekile kwisamba senani lokuthandwayo; incwadi yona ingase ifushanise umbhalo noma iwudlulise ngokugcwele.

Ngakho-ke, ukuguquguquka kwe-React.JS kuvezwa – ingxenye yesixhumi esibonakalayo ibhalwa kanye, futhi ngemva kwalokho inikezwa zonke izimo ezingenzeka.

Kungani kudingeka umtapo wezincwadi we-React?

I-React.JS ingenye yezinketho ezingaba khona zokubhala i-JS noma ikhodi ye-HTML ngefomethi elula, yenza amakhophi ayo futhi uyenze ibonakale. Izingxenye ezilapha zibhalwe ngolimi lwesistimu olukhethekile – i-JSX, ehlanganisa izici zolimi lohlelo lwe-JavaScript kanye nolimi lomaka lwe-HTML olujwayelekile.
Ikhodi ebhalwe ku-JSX icacile. Kubalulekile futhi ukuthi isiphequluli sewebhu akudingeki siqonde lolu limi lwesistimu – ikhodi ye-React.JS idluliselwa ku-JS, okubonwa yinoma yisiphi isiphequluli ngaphandle kwezinkinga. Ukwenza lokhu, lokho okudalwe emtatsheni wezincwadi kudluliselwa kubahlanganisi abakhethekile (enye edume kakhulu namuhla i-Babel js), eguqula amakhodi ngezilimi zokuhlela ezingaziwayo abe izethulo zeJavaScript.
Ekuqaleni kungase kubonakale sengathi uhlelo lokusetshenziswa alunangqondo ngokwedlulele, kodwa ngemva kwesikhashana uyajwayela futhi uyabona ukuthi kungani umshini uklanywe ngaleyo ndlela. Umtapo wezincwadi weJavaScript unenani lezinzuzo ezinamandla:

• ulimi lokuhlela uhlelo kulula ukulibona kuneJavaScript eyaziwa kakhulu, futhi ngenxa yalokho, kuzothatha isikhathi esincane izikhathi eziningana ukusekela ikhodi nokuqeda amaphutha kuyo (ijubane lokubhala amakhodi nezinhlelo ezintsha lizokhula ngokufanele);
• uhlelo olulula nolusebenzayo lwezakhi eziyisisekelo lwakhiwe lapha – izingxenye eziphindaphindayo zekhodi ezisetshenziswa ezigabeni ezahlukahlukene zokubhala nasezinhlelweni ezahlukahlukene, futhi zishintsha ngokuya komongo;
• ingxenye ngayinye eyingxenye ingaphansi kwesimo sayo kuphela , ngakho-ke kulula ukulungisa ukushiyeka kukhodi uma iphutha litholakala kungazelelwe emsebenzini walo ekusebenzeni; izikhathi ezingalungile zintanta phezulu: into esebenza kahle izoqhubeka nokusebenza ngokuzinza kule modi, ngaphandle uma, kunjalo, kusetshenziswe isimo esingalungile maqondana nayo.

Ngakho, singaphetha ngokuthi umtapo wezincwadi we-React.JS ungonga isikhathi esiningi, wenze ikhodi icace kakhudlwana, uhlele ukulandelana ngendlela efanele, futhi usebenzise amabhulokhi amakhulu futhi. Lezi zinzuzo zenza kube nokwenzeka ukunciphisa izindleko zenqubo yokudala i-interface yomsebenzisi, kanye nokusheshisa isikhathi sale nqubo. Ukuba namakhono okusebenzisa i-JS kanye nolimi lokuhlela lwe-HTML, ukufunda ukusebenzisa uhlelo lwe-JSX kulula – izinsuku ezimbalwa nje ukuluqonda kahle.

Qaphela! Kunengqondo ukusebenzisa umtapo wezincwadi lapho usebenza namaphrojekthi amakhulu, lapho kudingekile ukubhala inani elikhulu lamakhasi ashukumisayo. Indawo yebhizinisi elincane ayidingi izinto eziyinkimbinkimbi ezinjalo.

Phendula izifundo eziyisisekelo ze-JS ukusuka ku-A kuye ku-Z: https://youtu.be/GNrdg3PzpJQ

Ukujwayelana kwabaqalayo: imiqondo eyisisekelo

Sawubona Mhlaba!

Lapho efinyelela ikhasi lokuqala lomtapo wolwazi, umsebenzisi uzobona isihloko esamukelekayo njengesibonelo esincane – “Sawubona mhlaba!”.

Okuyisisekelo kolimi lwesistimu ye-JSX

I-JSX iwulimi lokuhlela uhlelo, isandiso seJavaScript eyaziwa kakhulu. Ihlanganisa inhlanganisela yezilimi ezimbili – uhlelo lwe-JA kanye nolimi lomaka lwe-HTML olumisiwe. Onjiniyela bayisebenzisela ukulungisa umqondo ukuze babonise okuthi Yenza kahle ukuthi ukusebenzelana komsebenzisi kufanele kubukeke kanjani. I-JSX idala “izingxenye” ​​zelabhulali.

Yini i-JSX?

Ilabhulali ye-React ibambelela kungqondongqondo yokuthi ingqikithi yokunikezela ihlobene ngokuqondile nomqondo wokusetshenziswa kubonwa: indlela imicimbi ecutshungulwa ngayo, ukuthi isimo sishintsha kanjani esikhathini esithile, nokuthi ulwazi lulungiselelwa kanjani ukwethulwa. Umtapo wezincwadi we-JS ungasetshenziswa ngaphandle kolimi lwayo lwesistimu, kodwa inani elikhulu lonjiniyela liyithola ibalulekile ngenxa yokucaca kwayo nokubamba kwayo lapho isebenza ngesixhumi esibonakalayo somsebenzisi esikhiqizwe ngekhodi ye-JavaScript. Ngaphezu kwalokho, isandiso senza kube lula ukuthi i-React ikhiqize isikhathi esingavumelekile nezaziso zamaphutha.

Ukwakhiwa kwezinkulumo ngolimi lwesistimu

I-JSX ikuvumela ukuthi usebenzise noma yiziphi izisho ze-JavaScript ezibhalwe kahle ngaphakathi kwezikaki ezigoqekile ngenqubo.

I-JSX futhi iyinkulumo Uma ikhodi yomthombo isifakwe nge-bytecoded, noma yisiphi isisho se-JSX siphenduka sibe ucingo olujwayelekile lwe-JS oluqondise isigaba se-JavaScript. Kulokhu kungaqondwa ukuthi isandiso sesistimu solimi olusemthethweni lokuhlela singasetshenziswa ngaphakathi kwe-if manual kanye nezikhathi.

I -JSX iyizinto Izinto ezimelelwe isandiso zibizwa ngokuthi ama-React elements. Bacacisa umphumela umthuthukisi afuna ukuwubona esibonisini. Umtapo wolwazi uyazibona lezi zinto futhi uzisebenzise ohlelweni lokukhiqiza nokugcina Imodeli Yento Yombhalo.

Ukunikezwa kwemininingwane

Imininingwane ngamabhulokhi amaningi amancane akha izinhlelo ze-React.
Imininingwane iyisithombe unjiniyela afuna ukusibona ekugcineni kusiqapha. Uma kuqhathaniswa nama-elementi e-Document Object Model, izakhi zelabhulali zilula futhi azithathi izinsiza eziningi. Ama-elementi ayizici zezingxenye.

Izingxenye kanye nezinsiza

Izingxenye zenza kube nokwenzeka ukuhlukanisa i-UI ibe izingxenye ezizimele, okulula ukusebenza kuzo ngokwehlukana. Zingahlanganiswa futhi zisetshenziswe izikhathi eziningi. Ngokwengxenye enkulu, ukusebenza kwezingxenye kufana nokusebenza kolimi lohlelo lwe-JavaScript ngokwalo. Bathatha ulwazi lokokufaka, olubizwa ngokuthi ama-props, bese bebuyisela izici ze-React ezibonisa imodeli yokuthuthukisa unjiniyela afuna ukuyibona kusiqaphi.

Izinhlobonhlobo zezingxenye: ukusebenza kanye nekilasi

Kulula kakhulu ukubhekisela engxenyeni yelabhulali njengomsebenzi.
Izingxenye nazo zingamelwa ngefomethi yekilasi le-ES6.

Kuyathakazelisa! Umtapo wezincwadi we-React uchaza lezi zinhlobo ezimbili zezingxenye ezifanayo.

izinsiza

Ama-Props yizinto ezingaguquleki ezifundwayo kuphela. Ngakho-ke, ingxenye akufanele ibhale noma yini kuma-props ayo, kungakhathaliseki ukuthi ingeyaluphi uhlobo.

Isimo kanye nomjikelezo wempilo

Okokuqala, ake sithole ukuthi singasisebenzisa kanjani kahle isimo emsebenzini. Kunezinto ezintathu ezibalulekile okufanele uzazi mayelana nesimo sengxenye:

1. Ungashintshi isimo ngokuqondile, sebenzisa indlela ye-setState. Khumbula ukuthi indawo kuphela lapho ungashintsha khona umbuso ngokuqondile umakhi.
2. Izibuyekezo zezwe kungenzeka zingavumelanisi.
3. Ukugeleza kolwazi kunendlela eyodwa. Ekwakhiweni kwengxenye, akekho kubo owaziyo uma umbuso unikezwe enye ingxenye. Akunandaba ukuthi lokhu noma leyo ngxenye yokusebenza ezimele yakhiwa kanjani – kusetshenziswa ithuluzi elisebenzayo noma lokuhlukanisa. Lokhu kubizwa ngokuthi “phansi komfula” ukuhamba kwedatha. Isimo sihlala sichazwa ngento ethile, futhi ukuhlotshaniswa kwesakhiwo salesi sifundazwe kungathinta kuphela izingxenye ezitholakala “ngezansi” ngokulandelana kwesigaba.

Ngokuvamile, isimo sibizwa ngokuthi “indawo”, “yangaphakathi”, noma efihliwe. Ibonakala kuphela kusici sokusebenza ngokwayo futhi ayibonakali kwezinye izingxenye ze-React. Ezinhlelweni zelabhulali, noma ngabe isici esisebenzayo esizimele sinikezwe isimo esithile noma cha, ukuthuthukiswa kwangaphakathi kwale ngxenye, okungashintsha ngokuhamba kwesikhathi. Kuyathakazelisa futhi ukuthi emsebenzini ungahlanganisa izingxenye ngaphandle kombuso.

Ukuhlaziywa komcimbi

Inqubo yokuhlaziya imicimbi ezingxenyeni ze-React ifana nokusingatha imicimbi kuma-elementi emodeli yento yedokhumenti. Nokho, kunezici ezimbalwa ezihlukanisayo komunye nomunye:

1. Imicimbi ekulabhulali ye-JavaScript iqanjwe ngesitayela esihlukile kunesijwayelekile.
2. Ngokusebenzisa Ulimi Lwezinhlelo Olunwetshiwe Lwesistimu, umthuthukisi udlulisa isimiso esingaphansi njengesibambi somcimbi esikhundleni sochungechunge.

Ukunikezwa okunemibandela kwama-elementi

Umtapo wezincwadi we-JavaScript wenza kube nokwenzeka ukuphula umqondo wokuthuthukisa izici zibe izingxenye ezizimele. Angaboniswa ukuze aboniswe okuvamile noma afihlwe, kuye ngokuthi yisiphi isimo aphiwe ngaso ngaleso sikhathi. Ukunikezwa okunemibandela kwezinto kusebenza kumgomo ofanayo nezinkulumo ezinemibandela ezisuselwe olimini lokuhlela lwe-JavaScript. Kwesinye isikhathi kuyenzeka ukuthi umtapo wolwazi udinga incazelo yokuthi isimo sithinta kanjani ukufihlwa noma ukunikezwa kwezinye izakhi. Lapha kunengqondo kakhulu ukusebenzisa umsizi we-JS onemibandela noma izinkulumo ezifana nokuthi uma.

Ukushintsha Izingxenye

Izici zelabhulali ye-React zingangezwa kokuguquguqukayo. Lesi yisixazululo esisebenzayo lapho isimo esithile sibonisa ukuthi ingxenye ethile yengxenye kufanele idwetshwe, noma ayenzi umqondo, kuyilapho ingxenye esele ingashintshile.

Uhlu kanye Okhiye

Lesi sigaba sihlanganisa izingxenye ezimbalwa:

1. Ukudweba izici eziningi . Umsebenzisi angakwazi ukwenza isethi yezinto futhi ayishumeke kulimi lohlelo lwesistimu esebenzisa izikaki ezisontekile.
2. Uhlu oluyisisekelo lwezinto . Ngokuvamile, abasebenzisi nabathuthukisi balungisa uhlu ngokuqondile ngaphakathi kwengxenye yengxenye.

Okhiye

Ukhiye kumtapo wezincwadi we-React JavaScript uchaza ithuluzi elikhethekile okufanele lifakwe lapho kukhiqizwa uhlu lwezingxenye. Okhiye basiza ilabhulali ye-JavaScript ukuthi ibone ukuthi iziphi izinto ezilungisiwe, zengezwe, noma zisusiwe. Kubalulekile ukuwamaka ukuze i-React ikwazi ukuhlobanisa izingxenye zedatha yesakhiwo ngemva kokudlula isikhathi esithile.

Amafomu

Emtatsheni wezincwadi we-JS, izakhi zolimi lwemakhaphu ezijwayelekile zisebenza ngokuhlukile kunezingxenye zemodeli yento yedokhumenti, ngenxa yokuthi izici zefomu ekuqaleni zinesimo esifihlekile.

Izinto Eziphethwe

Ngolimi lomaka olumisiwe, amafomu afana ne-input , khetha , i-textarea ijwayele ukugcina isimo sayo futhi ibuyekeze lapho unjiniyela efaka ulwazi olusha. Isimo se-React.js sihlala sichaza inani lezinkambu zokufaka kusici sokuqamba esiphethwe. Nakuba lokhu kubonisa ukuthi umsebenzisi kufanele abhale okungaphezudlwana kwekhodi yoqobo enikeziwe, manje sekungenzeka ukuthi adlulisele leli nani kwezinye izingxenye zokusetshenziswa kubonwa.

Ukunyuka kombuso

Ukuphakanyiswa kombuso kuyisifanekiso esimisiwe okufanele wonke unjiniyela asiqaphele futhi akwazi ukusisebenzisa emsebenzini. Ukuyisebenzisa kuzoqeda amaphethini wokuphatha wombuso ayinkimbinkimbi futhi ngokuvamile angenamsebenzi.

Kungani kudingekile kangaka ukulawula ukukhuphuka kombuso?

Ukukhuphula umbuso ezingeni lezingxenye ezedlule zalezo zingxenye ezidingayo kuyadingeka ukuze zonke izakhi zibambe iqhaza kuhulumeni. Izinga lombuso elizinzile lizokwenza kube lula ukulisabalalisa phakathi kwazo zonke izingxenye ezithembele kuso.

Ukwakheka vs Ifa

I-React.js ihlanganisa imodeli yokuqamba eqinile, ngakho-ke kunconywa ukusebenzisa inqubo yokwakha yonke kusuka ezingxenyeni esikhundleni sefa ukuze usebenzise kabusha ikhodi ebhalwe ngaphambili phakathi kwezinto. Ngakho-ke, ama-props kanye nekhono lokudala ukwakheka okuphelele okukodwa kusuka ezingxenyeni zengxenye, kunikeza unjiniyela ukuguquguquka okudingekayo ukuze adale igobolondo nokuziphatha kwesici ngendlela ethile nephephile.

Isikhumbuzi! Izingxenye zengxenye zingathatha ama-props angahlobene, okuhlanganisa izingxenye eziyisisekelo ezakha amalabhulali noma imisebenzi.

Esimeni lapho udinga ukusebenzisa umsebenzi ongabukeki ukuze usebenze nezingxenye okwesibili noma okwesithathu, yikhiphe uyifake kumojuli ehlukile ye-JS. Ihambise engxenyeni futhi usebenzise umsebenzi okhiqiziwe ngaphandle kokunwetshwa okwengeziwe. React noma Vue noma Engular, yini ukukhetha: https://youtu.be/Nm8GpLCAgwk

Izimiso ze-React.js

Yonke ifilosofi yelabhulali ye-JavaScript ifihliwe kumhlahlandlela we-React. Kubonakala sengathi lokhu kude futhi akubalulekile kangako, noma kunjalo, abasebenzisi abaningi bathi ngemva kokufunda konke kwangena endaweni. Amadokhumenti madala impela, kodwa asenenani elikhulu futhi abalulekile –
https://ru.reactjs.org/docs/thinking-in-react.html . Isifundo se-React js https://ru.reactjs.org/tutorial/tutorial.html

Ukusebenza kwelabhulali ye-React.js

Ngokusebenzisa umtapo wezincwadi we-JavaScript, umsebenzisi uthola ithuba lokunaka konke ngqo enqubweni yokuthuthukiswa kwe-UI kanye nezingxenye zohlelo lokusebenza, okungenani kukho konke ukuphazanyiswa ukwakheka kanye nokushiyeka okungenzeka kwekhodi ebhaliwe. Umtapo wolwazi ikuvumela ukuthi uthuthukise izinhlelo ngokushesha, wenze kube lula ukumisa nokuhlela izingxenye kanye nenqubo yephrojekthi iyonke. Ngakho, i-React.js iqukethe izici ezinesibopho sokuxhumana kunethiwekhi yomhlaba wonke, i-UI, ukulawula isimo sohlelo kanye nekhono lokuxazulula ezinye izinkinga eziyinkimbinkimbi. Umtapo wolwazi uphinde ube nezici ezilandelayo zokusebenza:

1. Ukusebenza . I-React.js itholakala ngefomethi encane. Le phakheji ehlangene ayidingi ukumiswa ngokucacile. Sekuvele kufaka phakathi isici sokuhlukanisa ikhodi esinciphisa isikhathi esisithathayo ukuze uvule inguqulo yesiphequluli sesayithi, njengoba le nketho ivimbela izingxenye ekunikezeni ngesikhathi esifanayo.
2. I-ecosystem epumped kanye nokuhambisana . Inani elikhulu lamathuluzi liyatholakala kulabhulali, lisekelwa amanye amasayithi, okuvumela umsebenzisi ukuthi athuthukise izinhlelo ezintsha eziyinkimbinkimbi nganoma iyiphi injongo.
3. Ukusebenza okugcwele . Inzuzo enkulu yomtapo wezincwadi we-JavaScript ukuthi zonke izinguqulo ezintsha zesikhulumi zihlangabezana nezidingo zakudala, ukuze ukwazi ukusebenzisa kokubili inguqulo endala kanye nenguqulo ebuyekeziwe, zonke zisekelwa futhi zibalulekile kuze kube yilolu suku. Izinguqulo ezikhishwe ngaphambilini aziphelelwa yisikhathi ngemva kwezibuyekezo zakamuva.

Ukusetshenziswa okuwusizo

Ekhasini eliyinhloko lomtapo wolwazi, emiyalweni yabasebenzisi, kunezibonelo ezimbalwa ezibonisayo zokusebenzisa i-React in practice. Ungazilungisa mathupha bese uzama ukuzisebenzisa. Ngisho noma ungumsebenzisi omusha futhi ungayiqondi ingqikithi nokunengqondo komtapo wolwazi, lungisa ikhodi ngendlela othanda ngayo futhi ubone umphumela.

Ukusetshenziswa okusebenzayo kwe-React lapho ubhala amarobhothi okuhweba ku-JavaScript

Kubalulekile ukuqaphela ukuthi umthuthukisi akahleli i-JS, kodwa ubhala imibhalo (scripts). ngakho-ke, esebenzisa umtapo wezincwadi, umthuthukisi angabhala ikhodi yerobhothi yokuhweba elandelayo esetshenziselwa izinjongo zokuhweba, futhi aqhubeke nokuklama ukubukeka kwayo ngokusekelwe kule nkundla. Eqinisweni, irobhothi lokuhweba lokuhweba liphinde libe uhlelo lokusebenza, lapho inani elikhulu lazo lithuthukiswa kusetshenziswa i-React.js. Nokho, eminye imisebenzi kanye nengxenye yangaphakathi ye-bot kusazodingeka yenziwe kwamanye amasayithi ahlinzeka ngamathuluzi afanele lokhu.

I-GitHub ne-React.js

I- GitHub iyinkundla esingethe zonke izinhlobo zamaphrojekthi. Umsebenzisi uxhuma ukusingathwa, adlule ngenqubo yokubhalisa kuwebhusayithi esemthethweni ye-GitHub, bese enza inqolobane eku-inthanethi lapho edlulisela khona wonke amafayela esuka ku-Git.
I- Git iyisevisi yokulawula inguqulo yephrojekthi ethandwa kakhulu futhi efanelekile namuhla, futhi i-GitHub iyindawo yokugcina ikhodi ekude.

Ireferensi! Yilabo basebenzisi kuphela abathole isixhumanisi esifanele ngemvume abakwazi ukufinyelela ukuhlela nokulanda amafayela.

Amadokhumenti

Zonke izifundo nezinto ezisetshenziswayo zakamuva mayelana nelabhulali ye-JavaScript zihambisana nesibuyekezo sakamuva. Onjiniyela baphinde bahlanganise futhi bathumele ukuze kufundwe okuvamile izinguqulo ezindala zemibhalo, eziposwe ekhasini elihlukile lomtapo wolwazi. Ngakho-ke, kuzoba lula kwabaqalayo ukwazi amakhono okuphatha isayithi: kokubili izinto ezindala nezintsha – konke kulapha, ukufinyelela kumahhala kuwo wonke umuntu.

Qaphela! Ungakhohlwa ukufunda iziqondiso. Okungenani bheka – kakade okuningi kwalokho okwakubonakala kungaqondakali kuzongena endaweni.

Ilabhulali ye-React iyinkundla edumile nefanele namuhla. Ukusebenziseka kwayo ngezindlela eziningi kuvumela onjiniyela ukuthi benze amaphrojekthi ekhwalithi engcono nangesikhathi esincane. Ngaphezu kwalokho, ukwazi ipulatifomu nokuba namakhono okuyisebenzisa kwenza uchwepheshe adingeke kakhulu emakethe yezabasebenzi.