Kungani i-JavaScript yaduma, amathemba, kufanelekile ukufunda ngo-2024

Okokuqala, yini i-JavaScript? I-Java Script iwulimi lokuhlela olusetshenziswa ukufinyelela izinhlelo zokusebenza ezahlukahlukene. Isikripthi se-Java singolunye lwezilimi zokuhlela ezidume kakhulu, futhi ukuthandwa kwaso kukhula kuphela. Uma ungathanda ukufunda okwengeziwe ngokuthi kungani i-Java Script ithola ukuduma nokuthi kufanelekile yini ukufunda i-JS ngo-2022, bheka amaqiniso angezansi. [i-id yamagama-ncazo = “okunamathiselwe_7684″ align=”aligncenter” wide=”760″]
UBrendan Eich, ubaba we-JavaScript[/caption]

Ulwazi oluyisisekelo mayelana ne-JS okufanele uyazi ngaphambi kokuthi uqale ukufunda ulimi lokuhlela lwe-JavaScript

I-JavaScript iwulimi lokuhlela olusezingeni eliphezulu olusekela izindlela eziningi ezahlukene. Kubhekiselwa eqenjini lezilimi ezihunyushiwe. Okuhlanganisa i-JavaScript:

1. Inani lolwazi linqunywa ngokubala inani lokungaguquki, noma i-hypotenuse.
2. Ikhodi yohlelo noma isicelo ivezwa lapho ifinyelelwa.
3. Imisebenzi yeskripthi se-Java inganikezwa njengeminye imisebenzi ehlukene esuka kwamanye amafayela, ungakwazi ukwabelana ngawo.
4. Ngenxa yokusabalala okuphezulu kwe-Javascript, isekelwa inani elikhulu leziphequluli.

I-ES6 isengezo esisha ku-JavaScript esinweba ukusebenza kwayo. Yengeza usekelo lwe-syntax yomsebenzi womcibisholo, ukuqaqa, ama-opharetha okusabalalisa nokuphumula, amamojula, namakilasi.
I-JavaScript isabalele futhi idumile, ngakho imiphakathi eminingi yakhiwe eduze kwayo, okunikeza abathuthukisi ukufinyelela kumathuluzi engeziwe, afana nalawa:

• Imitapo yolwazi nezinhlaka.
• Abaqoqi.
• Imitapo yolwazi eyisiza.
• Amajeneretha esayithi amile.

Futhi JS:

• ikuvumela ukuthi udale amasistimu angaphambili wesimanje usebenzisa i-React, Angular ne-Vue;
• usebenzisa i-React Native ukuze udale izinhlelo zokusebenza ze-cross-platform;
• imidlalo eminingi ibhalwe ngo-JS;
• amarobhothi okuhweba abhalwe ku-JavaScript.

[i-id yamagama-ncazo = “okunamathiselwe_7668″ align=”aligncenter” width=”610″]
Ukufunda ulimi lokuhlela lwe-JavaScript kukuvumela ukuthi uxazulule izinkinga ezilandelayo[/caption]

Kungani i-JavaScript idume kangaka futhi ikufanele ukuthandwa kwayo?

Njengoba kushiwo ngaphambili, i-Javascript ibalwa njengolunye lwezilimi zokuhlela ezidume kakhulu, kokubili ngokwenani lokusetshenziswa namaphrojekthi okwenziwa kuyo, kanye nemvamisa yezicelo.

I-Java iyindlela enhle yokuthi abahleli bezinhlelo abasaqalayo bangene ekuthuthukisweni. Izinkampani eziseRussian Federation zithatha abasaqalayo zibayise ezitudiyo zabo zewebhu. Ama-Studios atholakala emadolobheni amakhulu nasezifundeni.

Izinzuzo zeJavaScript, eziphawulwa ngochwepheshe:

• I-plus yokuqala ye-JS wukuvumelana nezimo kwe-JS , okukuvumela ukuthi udale izinhlelo zokusebenza, noma amasayithi anokusebenzelana okuhle kakhulu.
• Into yesibili okufanele uyinake ukuthuthukiswa kwezinhlelo zokusebenza zewebhu , okwamanje ezithola ukuthandwa. Lokhu kuthuthukiswa manje kulandelwa i-Google. Kodwa manje i-PWA ithola ukuthandwa, okungenzeka esikhathini esizayo ibambe imakethe. I-PWA ithuthukiswe kusetshenziswa i-JavaScript.

Futhi nawu umbono, othathwe kokuthi https://habr.com/:

Ayini amathemba olimi

I-JS ingolunye lwezilimi ezidingeka kakhulu emhlabeni. Ngokusho kwenkonzo ye-TIOB, isendaweni yesikhombisa. Ku-GitHub, ulimi lusendaweni yokuqala. Ulimi lwesibili olukhethwayo ngemuva kwePython. Konke lokhu kufakazela ukuthi ulimi lunamathemba amakhulu. Ulimi lohlelo lwe-JavaScript – okulotshwe kulo, indlela yokulufunda, ukuthi bakhokha malini ngalo: https://youtu.be/a76uc2FP4yE

Ingabe kuzoba nesidingo sabahleli bezinhlelo ze-JS esikhathini esizayo

Ekuthuthukisweni kokusebenzelana kwewebhu, izinhlelo zokusebenza azikwazi ukwenza ngaphandle kwe-JS. Ngakho-ke, ukuthandwa kwayo kuzokwanda. Ngokwezibikezelo, eminyakeni eyi-10 ezayo izodingeka nakanjani. [i-id yamagama-ncazo = “okunamathiselwe_7682″ align=”aligncenter” wide=”718″]
Umaka wentengo omaphakathi wamasevisi kanjiniyela we-avaScript e-Russia[/caption]

Okuhle nokubi kwe-JavaScript

Ngakho-ke, ingabe i-JS iyathandwa ngokufanelekile? Okuhle:

1. Sebenzisa ekuthuthukisweni kwewebhu – i-JS iyithuluzi elidingekayo elinayo yonke imisebenzi efanele, izinhlaka, imitapo yolwazi.
2. Isivinini nokusebenza – ukucutshungulwa kwezicelo ngesivinini esikhulu kumasayithi kunikeza inzuzo enkulu kulolu limi. Uyakwazi nokucubungula ingxenye yesicelo ngaphandle kokudala izicelo kuseva.
3. I- ecosystem enkulu – inani lezingxenye ezenziwe ngabasebenzisi likhule kakhulu futhi selitholakalela ukusetshenziswa ngaphandle kwemikhawulo.
4. Ukusebenziseka kalula – inani elikhulu lamathuluzi adalwe ukusiza umsebenzi wabasebenzisi, kanye nesixhumi esibonakalayo esilula, kwenza i-Javascript ibe lula ngendlela emangalisayo.
5. Kufanele futhi kubalulwe ukufunda okushesha kakhulu nokujwayela ulimi .

[i-id yamagama-ncazo = “okunamathiselwe_7676″ align=”aligncenter” width=”768″]
okuhle nokubi kwe-Javascript[/caption] Njenganoma yiluphi olunye ulimi, i-JS ayiphelele – I-Java Script nayo inokungalungi kwayo:

1. Ukuntuleka kokufunda nokulanda amafayela.
2. “Ukuthethelelwa kwamaphutha” – leli iqiniso lokuthi ulimi lweqa amaphutha futhi aluwagqamisi, futhi lubhala idatha ethile ngokomqondo walo. Konke lokhu kuvezwa kakade esigabeni somsebenzi nokulungisa amaphutha.
3. Ukushoda kosekelo lokufinyelela kude.
4. Ifinyeleleka kalula kubahlaseli. Ngenxa yokufinyeleleka kolimi, akunzima ukufaka ikhodi enonya kulo elimaza abasebenzisi.

Nokho, labo abasebenzisa ulimi bahlale beluthuthukisa ngendlela yabo. umphakathi wabasebenzisi. Iziphequluli ziyathuthuka kanye nomsebenzi we-JS.

Ukuthuthukiswa komdlalo weJavaScript

Abantu abaningi bacabanga ukuthi basebenzisa injini ye-C++ ukuze benze imidlalo epholile. Lokhu kungabizwa ngokuthi kuyiqiniso, kodwa akuphelele, ngoba abahleli bezilimi ezahlukene babamba iqhaza ekuthuthukisweni komdlalo. I-JavaScript ayihlukile kulokhu. Ungakha imidlalo ku-Javascript, kokubili elula neyinkimbinkimbi. Kuzo zombili izimo, kusetshenziswa ubuchwepheshe beCanvas, obusebenzisa ikhodi ku-HTML5. Ikhasi le-HTML lisetshenziselwa ukusetha ithegi yekhanvasi nokuxhuma i-JS, kulapho wonke umsebenzi wenzeka khona. I-id yekhanvasi edingekayo iseshwa efayeleni le-Java futhi indlela yokusebenza ngayo ikhethiwe. Lapha kuchazwe izigaba zokuqala ngaphambi kokuqhubeka nokudalwa komdlalo ngokwawo. Mayelana nemidlalo embalwa edumile ye-JavaScript:

1. I- OnOff – kulo mdlalo udinga ukuletha umlingiswa entanjeni ngokudlula izithiyo nezingozi ezihlukahlukene ngendlela yamabhola ahlabayo nemigodi. Ngeleveli ngayinye eqediwe, uzofaka ubukhulu obusha. Umdlalo unamazinga angama-25 futhi kungenzeka ukuthi uzenzele owakho.
2. I- Underrun ngumdlalo onobuciko be-pixel obuhle kakhulu nemisindo emihle kakhulu. Emdlalweni, udinga ukufika elabhorethri ngokudubula izitha eziguqukayo. Udinga ukufika lapho ukuze uqalise kabusha amasistimu zelebhu.
3. I-Super Chrono Portal Maker – umdlalo iSuper Mario yasekuqaleni, lapho kufanele udlule emazingeni okunqoba izithiyo nezitha. Izinga ngalinye elisha, okukhona kulo angu-30 emdlalweni, lengeza oomakhenikha abasha kanye nokusebenza. Kukhona umklami wezinga.
4. I- Offline Paradice iwumdlalo osheshayo lapho inselelo iwukuvele ugxume, ugijime futhi uphihlize izithiyo. I-FPS emdlalweni ihlale igcinwa ezingeni eliphezulu ngokuhloniphekile, futhi isici sokulondoloza ngokuzenzakalelayo sizokusiza ulondoloze inqubekelaphambili yakho. Umdlalo uzohambisana nomculo omnandi, isizinda esihle kanye nokugqwayiza okuhle.
5. I- Raven ngumdlalo wephazili lapho udinga ukulungisa amakhamera ukuze uhlole izidalwa ezingaqondakali eziyingozi ebumnyameni. Baqaphe ukuze bangakubulala.

Imbalwa kuphela imidlalo eyenziwe ngalolu limi echazwe lapha. Eqinisweni, ziningi ezinye.

Kungani Uba Unjiniyela we-JS ngo-2022 – Kungani Kufanele Ufunde I-JavaScript, Imibono

Uma namanje ungakwazi ukuphendula lo mbuzo ngemva kokufunda konke okungenhla, lesi sigaba ngesakho. Izizathu zokuthi kungani i-JS iwuhlelo lokufunda oluthembisayo luka-2022:

1. Lolu limi luvame kakhulu. Ayaziwa kuphela phakathi kwabaqalayo, kodwa naphakathi kochwepheshe.
2. Umphakathi omkhulu we-JS. Ulimi ludumile ngesizathu – inani elikhulu lokuthuthukiswa komsebenzi olula nalo lwenziwa abasebenzisi balolu limi. Isibonelo: i-npm ingumphathi wephakheji omkhulu. Ngaphezu kwalokho, kunemihlahlandlela eminingi ye-Java kuwebhu ukukusiza ukuthi uqalise. [i-id yamagama-ncazo = “okunamathiselwe_7670″ align=”aligncenter” width=”723″] Ungafunda i-Java Script ngendlela yegeyimu[/caption]
3. I-Java ulimi lweziphequluli. Vele, kukhona i-analogue yayo ye-WASM, kepha ayilungile ngokwanele ukudlula i-Java maduze nje. I-Java ibalulekile kubathuthukisi bewebhu.
4. Isivinini nokusebenza kahle. Iningi lamasayithi athandwayo asekelwe ku-Java, enenzuzo enkulu kubo. Zinejubane eliphezulu nokusebenza, zibiza kancane kubanikazi bazo, futhi zidalwe futhi zisebenza ngokushesha.

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Izilimi ezihamba phambili ezingu-15 zokuhlela ngokwe-GitHub[/caption]

Ukuhweba amarobhothi namasu ku-JavaScript

Kuyaqapheleka ukuthi i-Java ayisetshenziswanga kuphela ekuthuthukisweni kwamawebhusayithi nemidlalo, kodwa futhi nasekuqaliseni
amarobhothi okuhweba . Ukwenza lokhu, i-Java Script inakho konke okudingayo:

1. Izinkomba zobuchwepheshe ezingatholakala esizindeni somphakathi.
2. Umtapo wezincwadi we-Tinkoff invest-openapi-js-sdk.
3. Manje ake sithathe isu eliqediwe njengesifanekiso sokuziguqulela okwengeziwe. Isifanekiso sizoba isu elilula le-2 SMA.
4. Masithuthukise isu. Kulokhu, kuzosetshenziswa izakhi zofuzo. Ukuze wenze lokhu, udinga ilabhulali ye-geneticalgorithm.

[i-id yamagama-ncazo = “okunamathiselwe_7679” align = “aligncenter” wide = “811”]
Indlela yonjiniyela inzima futhi inameva[/caption] Ukusebenzisa i-Java Script nemitapo yolwazi ehlobene nezinhlaka, ngisho nomhwebi wohlelo lwe-Junior JS angabhala irobhothi elilula lokuhweba, alilungise endleleni. Ama-nuances amaningi adinga ukuthuthukiswa avele kanye nezinguquko emakethe. Ngemuva kokuthi isu selithuthukisiwe ngokuya ngefomula: Ukulindela kwezibalo = Amathuba enzuzo x Inzuzo emaphakathi – Amathuba okulahlekelwa x Ukulahlekelwa okumaphakathi. Okulandelayo kuza umsebenzi ngekhodi okwakhiwa ngayo isikhombimsebenzisi. I-interface izogcwaliswa ukuze kusethwe amapharamitha i-algorithm ezosebenza ngawo. Endabeni yenketho yokudala irobhothi lokuhweba usebenzisa izakhi zofuzo, udinga ukugijima futhi ugcwalise amakhodi amaningana ale robhothi bese uqala ukuwahlola, bese, ukukhomba ukushiyeka kwabo, hlanganisa abaphumelele kakhulu futhi ungakwenza lokhu kaningi ngokuthanda kwakho, umphumela ngamunye olandelayo uzobhekana nomsebenzi wawo kangcono nangcono, ukhetha amapharamitha wezikhathi ze-fastSMAPeriod kanye ne-slowSMAPeriod, kanye nokuma kanye kuthatha. Ngalesi silinganiso, ungakha uhlelo lokuhweba oluzosebenza emakethe. IJavaScript ikwenza kahle kakhulu lokhu. Kungani i-Javascript idume kangaka, kufanelekile ukufunda ulimi lohlelo lwe-JS: https://youtu.be/3kV1ZVM3KGU Kulesi sihloko, ufunde mayelana nezici ze-JS, izinzuzo zayo kanye nokubi. [i-id yamagama-ncazo = “okunamathiselwe_7677” align = “aligncenter” wide = “1200”] kanye nezinyawo nemisila. Ngalesi silinganiso, ungakha uhlelo lokuhweba oluzosebenza emakethe. IJavaScript ikwenza kahle kakhulu lokhu. Kungani i-Javascript idume kangaka, kufanelekile ukufunda ulimi lohlelo lwe-JS: https://youtu.be/3kV1ZVM3KGU Kulesi sihloko, ufunde mayelana nezici ze-JS, izinzuzo zayo kanye nokubi. [i-id yamagama-ncazo = “okunamathiselwe_7677” align = “aligncenter” wide = “1200”] kanye nezinyawo nemisila. Ngalesi silinganiso, ungakha uhlelo lokuhweba oluzosebenza emakethe. IJavaScript ikwenza kahle kakhulu lokhu. Kungani i-Javascript idume kangaka, kufanelekile ukufunda ulimi lohlelo lwe-JS: https://youtu.be/3kV1ZVM3KGU Kulesi sihloko, ufunde mayelana nezici ze-JS, izinzuzo zayo kanye nokubi. [i-id yamagama-ncazo = “okunamathiselwe_7677” align = “aligncenter” wide = “1200”]
I-JavaScript ingumphefumulo wesayithi [/ amazwibela] Manje usungakwazi ukunquma ikusasa lakho uma uqala ukuhlela ngalolu limi, futhi ngemva kokutadisha amathemba alo nokuthi lidingeka malini, ikusasa lakho lizophumelela kakhulu, futhi ithalente lokuhlela lizoba ngokufunwa.