Kuxazululiwe: Thola ukhiye wokuphunyuka

Inkinga enkulu ehlobene nokuthola ukhiye wokuphunyuka ukuthi ungacindezelwa kalula ngengozi. Uma othile ecindezela ngephutha ukhiye wokuphuma, kungase kubangele inkinga kukhompuyutha.

var escapeKeyCode = 27;

document.onkeydown = function(evt) {
    evt = evt || window.event;
    if (evt.keyCode == escapeKeyCode) {
        alert('Escape key was pressed.');
    }
};

Le khodi ichaza umsebenzi ozokwenziwa noma nini lapho ukhiye ucindezelwa. Uma ukhiye ocindezelweyo unekhodi yokhiye engu-27, kuzobe sekuvela isaziso esithi 'Ukhiye we-Escape ucindezelwe.'

Izinto namakilasi

Ku-JavaScript, izinto ziyindlela yokuqoqa idatha ehlobene ndawonye. Amakilasi ayindlela yokuhlanganisa amakhodi ahlobene ndawonye.

Into iyisibonelo sekilasi. Ikilasi yisifanekiso sokudala izinto. Udala into ngokusebenzisa igama elingukhiye elisha futhi ucacise igama lekilasi. Isibonelo, ungakha into ebizwa ngokuthi "Umuntu" ngokusebenzisa ikhodi elandelayo:

var person = Umuntu omusha();

Ungakwazi futhi ukudala into ngokusebenzisa umsebenzi womakhi ochazwe ekilasini. Isibonelo, ungakha into ebizwa ngokuthi "Umfundi" ngokusebenzisa ikhodi elandelayo:

var umfundi = umfundi omusha();

I-Python Object Oriented

I-Python iwulimi lokuhlela olugxile entweni oluvumela abathuthukisi ukuthi bakhe izinhlelo zokusebenza zesofthiwe eziyinkimbinkimbi kalula. I-Python idumile ngokufundeka kwayo nokuqondakala, okwenza kube ukukhetha okuhle konjiniyela abafuna ukubhala ikhodi okulula ukuyiqonda. I-Python futhi inomphakathi omkhulu wabathuthukisi abatholakalayo ukukusiza ngamaphrojekthi akho, ukuze uqiniseke ukuthi ikhodi yakho izosekelwa kahle.