Ingxaki ephambili enxulumene Bulala zonke iinkqubo ze-node kukuba inokubangela ukuphazamiseka okukhulu kunye nomonakalo kwinkqubo yakho yekhompyuter. Lo myalelo ungasetyenziselwa ukubulala zonke iinkqubo kwikhompyuter, kodwa unokubangela ezinye iingxaki ukuba awusetyenziswanga kakuhle. Ukuba usebenzisa lo myalelo ngaphandle kokwazi ukuba wenza ntoni, unokonakalisa inkqubo yekhompyuter yakho kwaye yenze kube nzima ukuyilungisa.
pkill -9 node
Lo mgca wekhowudi usetyenziselwa ukubulala inkqubo ye-node. Ukhetho lwe -9 lusetyenziselwa ukubulala inkqubo ngokukhawuleza.
Iimpawu
Uluhlu yingqokelela yedatha enokufikelelwa kusetyenziswa inombolo yesalathiso. Uluhlu lubhengezwa kusetyenziswa igama elingundoqo le-var kwaye linokuba nalo naliphi na inani lezinto. Isiqalelo sokuqala kuluhlu lukwisalathiso u-0, into yesibini kwisalathiso 1, njalo njalo.
Ukufikelela into kuluhlu, usebenzisa inombolo yesalathiso elandelwa ligama lesiqalelo. Umzekelo, ukufikelela kwinto yesithathu kuludwe olubizwa ngokuba yi-myArray, uya kusebenzisa i-myArray[3].
Ungasebenzisa kwakhona izibiyeli ezisikwere ukubonisa ukuba ufuna ukufikelela kuzo zonke izinto kuluhlu. Umzekelo, i-myArray[0] ingabuyisela into yokuqala kuluhlu, i-myArray[1] ingabuyisela into yesibini kuluhlu, njalo njalo.
I-Boolean
I-boolean luhlobo lwedatha olunokumela ixabiso lokwenyani okanye elibubuxoki. KwiJavaScript, iiBooleans zimelwe luhlobo lwe Boolean.
Ukwenza i boolean kwiJavaScript, usebenzisa i bool() umsebenzi. Lo msebenzi uthatha iimpikiswano ezimbini: umtya omele ixabiso eliza kukhangelwa kunye nomsebenzisi we boolean (umzekelo, iyalingana, ayilingani). Ixabiso lembuyekezo ye-bool () yinyani ukuba umtya umele ixabiso lokwenyani kwaye bubuxoki ukuba umele ixabiso elingeyonyani.
Nanku umzekelo ojonga ukuba ingaba umtya "yinyani" uyalingana ne boolean "yinyaniso":
ukuba (bool(“yinyaniso”) == bool(“yinyaniso”)) {// Ikhowudi yokwenza xa 'yinyani' ilingana ne 'yinyani' } enye into {// Ikhowudi yokuphumeza xa 'ubuxoki' ilingana 'nenyani. '}
