Izinzuzo zokufunda i-JavaScript (JS) ngo-2022, ukuduma namathuba, kungani kufanele ufunde i-JS? I-JavaScript (JS) iwulimi lokuhlela olusekelwe ku-prototype. Ekuqaleni, ulimi lwasungulwa ukuze luvuse izinsiza ze-inthanethi, okungukuthi, ukwenza amawebhusayithi aphendule ngangokunokwenzeka futhi aphendule ngokushesha imiyalo yabasebenzisi. Lokhu kuhlanganisa amawindi azivelelayo, izinkinobho ezisebenzayo, ngokuchofoza lapho isistimu yenza khona isenzo esithile.
- I-JavaScript: uhlelo lokusebenza olusebenzayo, olunikeza ulwazi lwe-JS
- Kungani ulimi lohlelo lwe-JavaScript seludume kangaka futhi luqhubeka nokuthandwa: umbono wochwepheshe abanolwazi
- Yenza amasayithi aphile
- Izinhlelo zokusebenza zewebhu eziqhubekayo zithola ukuduma
- Kulula ukufunda
- Kungani kufanele unake i-JS lapho ubhala izicelo, amarobhothi noma ngezinye izinjongo?
- Ingabe i-JavaScript izoba nokuduma okunjalo esikhathini esizayo?
- Ingabe amakhono nolwazi lwe-JavaScript kuyadingeka ngempela: ubuhle nobubi bokufunda lolu limi lokuhlela
- Ukuthuthukiswa kwamarobhothi okuhweba okuhweba: ingabe i-JavaScript ifanelekile futhi yini engadalwa ngayo
- Izinzuzo kanye nokubi kokufunda, kanye namathuba olimi lokuhlela lwe-JavaScript
I-JavaScript: uhlelo lokusebenza olusebenzayo, olunikeza ulwazi lwe-JS
I-JavaScript isetshenziswa kumaphrojekthi amaningi wokuthuthukisa iseva yobuchwepheshe. Njengomthetho, izisekelo zamaklayenti, izinhlelo zokusebenza ze-inthanethi nezinsiza zewebhu zakhiwe ngesisekelo sekhodi yalolu limi lohlelo. I-JavaScript isetshenziselwa izenzo nemisebenzi elandelayo:
- Ukuthuthukiswa kwezinhlelo zokusebenza zeselula ezishumekiwe ezijwayelekile . Lezi izinhlelo zesistimu ezakhelwe ngaphakathi ngokuzenzakalelayo phakathi nokuthuthukiswa kwe-OS.
- Ukuthuthukiswa kwe-software ne-hardware ingxenye yesevisi (i-backend) .. Kulolu limi lokuhlela, ingxenye yangaphakathi yamadivaysi amaningi, izinhlelo zokusebenza namawebhusayithi nayo ibhaliwe. Okusho ukuthi, ngosizo lwekhodi eyodwa ebhalwe ku-JavaScript, ungakha kokubili isisekelo seklayenti futhi uklame iseva yesayithi yangaphakathi.
- Ukuthuthukiswa kwezinhlelo zekhompyutha . I-JS isetshenziswe ekwakhiweni kwezinhlelo zehhovisi ezifana ne-Microsoft, i-Skype, njll.
- Ukwakhiwa kwamarobhothi okuhweba okuhweba . Njengoba i-JS kuwulimi olulula ukufunda, abahwebi abaningi abafuna ukuzakhela irobhothi lokuhweba bona baphendukela ekusebenziseni lolu limi lokuhlela.
Kungani ulimi lohlelo lwe-JavaScript seludume kangaka futhi luqhubeka nokuthandwa: umbono wochwepheshe abanolwazi
I-JavaScript ingolunye lwezilimi zokuhlela ezifunwa kakhulu emhlabeni, ikleliswe endaweni yesi-7 ohlwini lwe-TIOBE. Abahleli bohlelo abanolwazi baqaphela izizathu ezimbalwa zokuvuswa kolimi lwezinhlelo lwamanje nokuthi kungani luqhubeka nokuduma.
Yenza amasayithi aphile
Njengoba siphawulile ngenhla, ngosizo lwe-JS, insiza yewebhu ingalethwa esimweni esiguqukayo, isheshise futhi yenze umsebenzi ube lula kuyo. Amafasitela we-pop-up, izinkinobho ezisebenzayo ezisebenzayo, lapho ucindezelwa, umyalo othile ukhishwa – konke lokhu kwenziwa ngesisekelo sekhodi yohlelo lwe-Java Script.
Izinhlelo zokusebenza zewebhu eziqhubekayo zithola ukuduma
I-PWA (izinhlelo zokusebenza zewebhu eziqhubekayo) ubuchwepheshe obuyinhlanganisela yensiza eku-inthanethi kanye nesicelo seselula, lokho, ngenxa yalokho, sithatha indawo yohlelo lwe-smartphone ngewebhusayithi. Isetshenziswa ngokuqhubekayo yi-Google Corporation.
Kulula ukufunda
Nakuba kunama-nuances okufunda noma yiluphi ulimi lokuhlela, okuhlanganisa i-JavaScript, kulula kakhulu ukufunda futhi kubekezelela amaphutha. Noma yimuphi umsebenzisi, uma efisa, uzokwazi ukuqonda uhlelo lokubhala ikhodi futhi akhe imikhiqizo oyifunayo ngesisekelo salo.
Kungani kufanele unake i-JS lapho ubhala izicelo, amarobhothi noma ngezinye izinjongo?
Kunezizathu ezimbalwa zokusebenzisa i-JavaScript:
- inani elikhulu lolwazi mayelana nocwaningo lwayo, ama-nuances nomsebenzi ungatholakala esizindeni somphakathi ku-inthanethi;
- anhlobonhlobo amathuluzi okusebenza;
- umphakathi omkhulu futhi onobungane ozokusiza ukuthi uxazulule izinkinga ezivele;
- lolu limi lokuhlela lungasetshenziswa ezindaweni ezihluke ngokuphelele: ukubhala isisekelo seklayenti, iseva yesayithi, uhlelo lokusebenza lweselula, njll.;
- isidingo esikhulu emakethe yezabasebenzi.
[i-id yamagama-ncazo = “okunamathiselwe_7680″ align=”aligncenter” width=”764″]
Qaphela! Isivinini, ukuba lula kanye nokwakheka kwekhodi yohlelo kuyakhula. Kodwa ungesabi lokhu – ngenxa yomphakathi omkhulu, isithakazelo sabantu abaningi kulolu limi lohlelo, amathuluzi ahlukahlukene okusebenza, umsebenzisi ngamunye uzokwazi ukufunda nokuthuthukisa ngokuzimela umkhiqizo wabo wesistimu.
Ingabe i-JavaScript izoba nokuduma okunjalo esikhathini esizayo?
Inqubo yezobuchwepheshe ayimile futhi, ngokusho kwabahleli bezinhlelo abanolwazi, kungekudala bekukhona ubuchwepheshe obungathatha indawo yokusebenza kwekhodi yohlelo esipheqululini, kodwa namuhla banamakhono abuthakathaka kune-JS enawo. Kubalulekile ukuthi izinkampani eziningi ezinkulu namuhla zitshale imali njalo ekuthuthukisweni kwalolu limi lokuhlela, ngakho-ke alulahlekelwa ukuhambisana kwalo, luya ngokuya luthandwa futhi lusebenza kahle. Ngakho-ke, ngokuphathelene nesibikezelo seminyaka emihlanu kuya kweyishumi ezayo, ukuthandwa kweJavaScript kuzokhula, ngoba kusenezindawo eziningi zokusebenzelana nezingosi ezifile ku-inthanethi okufanele zibhekiswe. Okuzokwenzeka ngokulandelayo kunzima ukukubikezela ngenxa yobuchwepheshe obulokhu buthuthuka.
Ingabe amakhono nolwazi lwe-JavaScript kuyadingeka ngempela: ubuhle nobubi bokufunda lolu limi lokuhlela
Abahleli bezinhlelo abanolwazi bathi ulimi luzosebenza isikhathi eside, futhi amakhono alo okusebenza cishe angenamkhawulo. Kunezilimi eziningi zokuhlela, kodwa i-JS mayelana nalokhu ihlukaniswa ngobulula bayo, i-ecosystem kanye nokufinyeleleka kwayo. Okubalulekile! Kodwa-ke, kuyadingeka futhi ukucabangela ukuthi ulimi lwe-JS luhlala lushintsha, futhi kuzodingeka ufunde njalo ubuchwepheshe obusha bese uzisebenzisa ekusebenzeni. Kungani kufanele ufunde i-JS:
- I-ecosystem elula, ekhonjelwe nakumsebenzisi ojwayelekile.
- Ukusebenza okubanzi kanye nesethi enkulu yamathuluzi omsebenzi.
- Amakhono ngeke abe yize, angaba wusizo kokubili emalini etholwayo nangezinjongo zomuntu siqu.
Ukungalungi kwe-JS:
- Ubuchwepheshe obusha bungeniswa njalo olimini, kufanele bufundwe futhi bakwazi ukubusebenzisa ekusebenzeni.
Amakhono namakhono olimi akudingekile kumsebenzisi olula ongaphishekeli umgomo wokubhala izinhlelo, amaseva noma ongahleli ukuxhuma impilo yakhe nezinhlelo esikhathini esizayo, noma kunjalo, kulabo abafuna ukuqonda le ndawo, lokhu kuzoba ubufakazi obengeziwe bomsebenzi.
Ukuthuthukiswa kwamarobhothi okuhweba okuhweba: ingabe i-JavaScript ifanelekile futhi yini engadalwa ngayo
Abathengisi abaningi bafuna ukuba nomsizi wesistimu wokuhweba ekuhwebeni kwamasheya, kodwa iningi labo lifuna nokubhala irobhothi ngokwabo, futhi linga-oda elenziwe ngomumo. Yiqiniso, intshiseko enjalo yamukelekile, ngoba kungenzeka ukubeka ukusebenza okudingekayo kumkhiqizo wakho. Kodwa-ke, kuthiwani uma umhwebi engaziqondi izilimi zokuhlela, futhi i-JS flickers njalo njalo kumarobhothi athandwayo okuhweba, ingabe kufanelekile? Ochwepheshe bazothi kungcono ukusebenzisa i-C/C++/C# ukubhala amarobhothi okuhweba, kodwa lezi zilimi zokuhlela azizona ezimfushane kakhulu futhi kulula ukuzifunda, futhi umhlaba awugcini lapho. Uma usebenzisa i-JS lapho ubhala i-bot yokuhweba, inqubo izothatha isikhashana, kodwa ukusebenza komsizi,
- I-syntax emfushane, ikhodi enembile kanye nekhithi yamathuluzi ebanzi yomsebenzi onethezekile.
- Ulimi lusebenza emhlabeni wonke: okungukuthi, umthuthukisi uzokwazi ukufaka ku-bot yakhe noma yiziphi izici ezidingekayo kunqubo yokubhida eyimpumelelo.
- I-JavaScript inamathuba amahle okuthuthuka, ulimi luvuselelwa njalo ngobuchwepheshe obusha, okunikeza umthuthukisi amathuba engeziwe okuthuthukisa irobhothi.
- Lolu limi lokuhlela lusekelwa ukuhwebelana kwamasheya okuningi, ngakho amarobhothi enza umsebenzi wawo ngendlela efanele.
[i-id yamagama-ncazo = “okunamathiselwe_13210″ align=”aligncenter” wide=”736″]
Izinzuzo kanye nokubi kokufunda, kanye namathuba olimi lokuhlela lwe-JavaScript
| Izinzuzo | Amaphutha |
| Kusabalele futhi kuyahambisana namapulatifomu ahlukahlukene. Noma yisiphi isiphequluli ne-OS isekela lolu limi. Azikho izinkinga ngokukhipha izinhlelo zokusebenza noma ukwethulwa kwezinsiza zewebhu ku-PC noma kumakhalekhukhwini phakathi naso sonke isikhathi ikhodi isetshenziswa. | Lapho uthuthukisa, i-compiler ngeke isize. Okusho ukuthi, umthuthukisi akakwazi ukuthola ukuthi ikhodi ebhaliwe izosebenza yini aze afinyelele umugqa othile lapho leli sheke litholakala khona. |
| Uhlelo lokusebenza lwe-JavaScript aludingi ukufakwa kukhompuyutha yedeskithophu noma kwenye idivaysi – ikhodi ibhalwe esipheqululini. | Lapho ubhala umkhiqizo, kuzodingeka usebenzise ezinye izinsiza. I-JS ayikuvumeli ukukhohliswa kwefayela, izenzo zokufaka nokukhiphayo. Ngakho-ke, umthuthukisi kuzodingeka asebenzise imitapo yolwazi evela eceleni ngesikhathi sokubhala. Kodwa lezo zingase zihluleke ngemuva kwekhodi. |
| Kulula ukufunda. Kuyamangaza, ngoba lolu limi lokuhlela lusebenza kahle futhi ludumile kangangokuthi kungase kubonakale sengathi kufanele kube nzima ukufunda, kodwa ngisho nezingane esikoleni zifundiswa amakhono okulusebenzisa. I-syntax ne-ecosystem iyaqondakala futhi icacile, futhi inani elikhulu lamathuluzi omsebenzi likhulisa kuphela amathuba onjiniyela. | Ukuphepha okuphansi. Kunamakhodi amaningi ombhalo atholakalayo ku-inthanethi, ngakho-ke asikho isiqinisekiso sokuthi umkhiqizo osuselwe ku-JS ngeke ugqekezwe ngokuzayo. |
| Ulimi lwezinga eliphezulu. Lokhu kusho ukuthi ohlelweni lwalolu limi kukhona kakade inhlanganisela yezenzo, ozisebenzisayo ongabhala kalula ikhodi. Okusho ukuthi, umthuthukisi akudingeki ukuthi anikeze isenzo ngasinye, ulimi luzohlinzeka ngekhodi ngokwalo. Kodwa lokhu akuphazamisi amandla omsebenzisi. | |
| Fast in practice. Imikhiqizo ebhalwe nge-JavaScript ihlukaniswa ngokuphila kwayo, ukusabela okusheshayo nokuguquguquka kwayo. |
Izinzuzo zokufunda i-JavaScript, yiziphi izici nezinzuzo ze-JS: https://youtu.be/fqsCkxnXqbk I-JavaScript iwulimi oluhle kakhulu lokuhlela olunemisebenzi eminingi hhayi yabaqalayo kuphela, kodwa nochwepheshe abanolwazi. I-syntax ne-ecosystem kulula ukuyifunda, futhi anhlobonhlobo amathuluzi azonweba izinketho zonjiniyela. Futhi ukufunda lolu limi lokuhlela ukuze ukhulise amakhono akho ochwepheshe noma ulusebenzise ngezinjongo ezithile, noma cha – kukuwo wonke umuntu ukuthi azinqumele.
