5 Zolakwitsa Zomwe Ambiri Amapanga ndi Opanga JavaScript

Kukula kwa Javascript

JavaScript ndiye chilankhulidwe choyambira pafupifupi masiku ano. M'zaka zingapo zapitazi, tawona kuchuluka kwa malaibulale ndi maofesi omwe ali ndi JavaScript popanga mawebusayiti. Izi zidagwirira Ntchito Mapulogalamu Amodzi Amodzi komanso nsanja zam'mbali za JavaScript. JavaScript yakhala ikupezeka paliponse pantchito zachitukuko. Ichi ndichifukwa chake ndi luso lalikulu lomwe liyenera kuphunzitsidwa ndi opanga mawebusayiti.

JavaScript ingawoneke yosavuta pakuwoneka koyamba. Ngakhale kupanga magwiridwe antchito a JavaScript ndichinthu chophweka komanso chowongoka kwa aliyense, ngakhale munthuyo atakhala watsopano ku JavaScript. Koma chilankhulochi ndi chovuta kwambiri komanso champhamvu kuposa momwe timafunira kukhulupirira. Mutha kuphunzira zinthu zambiri m'makalasi a JavaScript ndi Chithunzi cha ECMAScript 2015. Izi zimathandizira kulemba nambala yosangalatsa komanso zimayankhanso pazokhudza cholowa. Zinthu zosavuta izi zimatha kubweretsa zovuta nthawi zina. Tiyeni tikambirane ena mwa mavuto omwe amapezeka kwambiri.

  1. Kutalika kwa block-level - Chimodzi mwazofala kwambiri kusamvana pakati pa opanga JavaScript ndikuganiza kuti imapereka mwayi watsopano pakachidindo kalikonse. Izi zitha kukhala zoona pazilankhulo zina zingapo, koma sizowona kwathunthu pa JavaScript. Ngakhale magawo azibuloko akupeza thandizo lina kudzera pamawu achinsinsi omwe adzagwiritse ntchito mawu osakira mu ECMAScript 6.
  2. Kutulutsa Kokumbukira - Ngati simumvetsera mwatcheru, kukumbukira kukumbukira ndichinthu chosapeweka mukamalemba JavaScript. Pali njira zambiri zomwe kutulutsa kukumbukira kumatha kuchitika. Kutulutsa kumodzi kwakukulu kumachitika mukakhala ndi zilozero zosasimbika za zinthu zomwe sizinachitike. Kukumbukira kwachiwiri kumatha kuchitika ngati pali zozungulira. Koma pali njira zopewera kukumbukira kukumbukira uku. Zosintha Padziko Lonse ndi zinthu zomwe zilipo pakadali pano zimadziwika ngati mizu ndipo zimatheka. Amasungidwa pokumbukira bola atha kupezeka mosavuta kuchokera ku mizu pogwiritsa ntchito cholozera.
  3. Kuponderezedwa kwa DOM - Mutha kusintha mosavuta DOM mu JavaScript, koma palibe njira yoti izi zitha kuchitidwa moyenera. Kuphatikiza kwa chinthu cha DOM ku code ndi njira yotsika mtengo. Nambala yomwe imagwiritsidwa ntchito kuwonjezera ma DOM angapo siyabwino kwenikweni motero siyigwira ntchito bwino. Apa ndipomwe mungagwiritse ntchito zidutswa zamalemba zomwe zingathandize kukonza magwiridwe antchito ndi magwiridwe antchito.
  4. Kutanthauzira - Njira zolembetsera ndi mapangidwe a JavaScript apita patsogolo m'zaka zaposachedwa. Izi zadzetsa kuwonjezeka pakukula kwamalo owerengera okha. Izi ndizomwe zimayambitsa chisokonezo cha ichi / icho. Yankho logwirizana ndi vutoli ndikusunga zomwe mukulembazo ngati izi mosiyanasiyana.
  5. Njira Yokhwima - Njira Yoyeserera ndi njira yomwe zolakwitsa zomwe zimachitika nthawi yanu ya JavaScript zimakhwimitsa ndipo izi zimapangitsa kuti zikhale zotetezeka kwambiri. Kugwiritsa ntchito Njira Yoyeserera kwalandiridwa kwambiri ndikudziwika. Kuperewera kwake kumawerengedwa ngati mfundo yoyipa. Phindu lalikulu pamachitidwe okhwima ndikosavuta kukonza, mayikowo mwangozi amapewedwa, mayina abwinobwino amakanidwa etc.
  6. Nkhani Zapansi - Kuti mupange gulu kukhala kalasi lina la gulu lina, mudzafunika kugwiritsa ntchito imatha mawu osakira. Muyenera kugwiritsa ntchito koyamba zabwino (), ngati njira yomangamanga yagwiritsidwa ntchito mu subclass. Izi zichitike musanagwiritse ntchito izi mawu osakira. Ngati izi sizinachitike, codeyo sigwira ntchito. Mukapitiliza kulola magulu a JavaScript kukulitsa zinthu zanthawi zonse, mupitiliza kupeza zolakwika.

Womba mkota

Pankhani ya JavaScript komanso chilankhulo china chilichonse, mukamayesetsa kumvetsetsa momwe imagwirira ntchito komanso momwe sizigwirira ntchito, zidzakhala zosavuta kuti mupange nambala yolimba. Izi zidzakuthandizani kuti muzitha kugwiritsa ntchito bwino chilankhulo. Kupanda kumvetsetsa koyenera ndipamene vuto limayambira. Makalasi a ES6 a JavaScript amakupatsirani maupangiri kuti mupange nambala yoyendetsera zinthu.

Ngati simukumvetsetsa bwino zopindika zazing'onong'ono, mutha kukhala ndi nsikidzi mu pulogalamu yanu. Ngati mukukayika, mutha kufunsa ena opanga mawebusayiti athunthu.

Mukuganiza chiyani?

Tsambali likugwiritsa ntchito Akismet kuchepetsa spam. Phunzirani momwe deta yanu ikufotokozera.