Inkinga enkulu ngokuthola izandiso zefayela ukuthi zingadideka kakhulu. Kunezinhlobo eziningi ezahlukene zamafayela nezandiso zefayela, futhi kungaba nzima ukwazi ukuthi iyiphi ozoyisebenzisa.
var fileName = "sample.txt";
var fileExtension = fileName.split('.').pop();
Le khodi ichaza okuhlukile okubizwa nge-“fileName” futhi ikunikeza inani elithi “sample.txt”. Ibe-ke ichaza okuguquguqukayo okubizwa ngokuthi “i-fileExtension” bese ikunika inani lomphumela wokusebenzisa indlela “yokwehlukana” kokuguquguquka kwe-“fileName”, isebenzisa inkathi (.) njengesihlukanisi, bese isebenzisa indlela ethi “pop” ivuliwe. lowo mphumela. Umthelela wonke ukuthi okuhlukile kwe-“fileExtension” kugcina kuqukethe inani elithi “.txt”, okuyisandiso sefayela lefayela elithi “sample.txt”.
Ozimele bedatha
Uhlaka lwedatha luyisakhiwo sedatha ku-Python no-R esikuvumela ukuthi ugcine idatha yethebula ngefomethi elula. Ku-JavaScript, ungakha ifreyimu yedatha usebenzisa umsebenzi we-d3.data. Lo msebenzi uthatha into njenge-agumenti yawo yokuqala, futhi ubuyisela into ye-DataFrame. Ungasebenzisa izindlela ezahlukahlukene entweni ye-DataFrame ukuze ufinyelele futhi ulawule idatha yakho.
Kopisha Izakhiwo
Izakhiwo zokukopisha ziyindlela yokuhlanganisa amakhodi ahlobene ndawonye. Zikuvumela ukuthi usebenzise kabusha ikhodi ngokuyikopisha phakathi kwezindawo ezihlukene.
Ukusetshenziswa okuvame kakhulu kwezakhiwo zokukopisha kusekuhlelweni okugxile entweni. Kuhlelo olugxile entweni, uvamise ukudala izinto bese usebenzisa ikhodi efanayo ukuze udale izimo zalezo zinto. Ungakwenza lokhu ngokwakha ikhophi yekhodi edala isibonelo sento, bese ushintsha amagama aguquguqukayo esibonelo ukuze afane negama lekilasi.
Ungasebenzisa futhi izakhiwo zokukopisha ku-JavaScript ukuze uqoqe amakhodi ahlobene ndawonye. Isibonelo, ungasebenzisa isakhiwo sokukopisha ukugcina zonke izinto zakho eziguquguqukayo endaweni eyodwa. Ungasebenzisa leso sakhiwo ukuze ufinyelele lokho okuguquguqukayo kusuka noma yikuphi kukhodi yakho.
