Stack JavaScript push / pop

JavaScript awukayenzi ziphakishe, kodwa kukho uluhlu enokusetyenziswa njengendawo ntshunxekile. Kwangaxeshanye, iindlela zokwenza JavaScript uluhlu lwe push / pop, kunokuba abe mfumba kwawo, kunye uluhlu lwe umbutho data yakhe.

Ngenxa kwimiboniso kelelo lokuqala - oku isakhiwo data aqhelekileyo nezaziwayo. Kodwa ukusebenza nabo abe mfumba kubanika akubonakali into yokuba syntax ulwimi. Ukongeza / kokususa nge JavaScript ukutyhala / pop ukuphelisa okanye unshift / shift ukuya phezulu lula nje kuphela, kodwa pfunaka.

ukusebenzisa iindlela

Le uluhlu iilebhile kunye izakhi ezintsha usebenzisa push indlela. Isiphumo sale ndlela linani elitsha leziqalelo kwi uluhlu. Inkqubo umva - indlela pop Akukho parameters, kodwa njengoko ngenxa element wokugqibela uluhlu.

Njengokuba lulandelayo kulwimi kwezivakalisi kunye logic kwimiboniso bangasebenza naluphi na uhlobo lwe data.

JavaScript push into - ububhanxa okanye inkqubela?

ulwimi browser ayikho ngaphantsi koogxa babo ngakumbi "ezamahala" ngokumalunga senkqubo into ebomini, oko kukuthi, enye kwenza kube lula ukwenza izinto. Ngenxa yoko igama ebonisa into eziphathelele PLO anako.

Ngokubanzi, isibakala sokuba kukho e JavaScript, ngoko kude bengenayo imali nayiphi "ezamahala" ukusuka browser ulwimi. Eyona lokuqala - nokudalwa kwento apha - lo wenkqubo izandla, ukuqalela igama lento.

Iindlela JavaScript pop & ukutyhala xa usebenzisa izinto unika badwelisi benkqubo ukukwazi ukwenza into yemiba ngemiba-lokoqobo yeli gama.

Umzekelo, ukuba amaphepha amaninzi ayelelene kodwa ezahlukeneyo (izinto akadibananga omnye komnye ingqiqo yababini), unako ukuphumeza isindululo phezu kwabo umtyeleli. Ukubeka le mfumba (liyindlela yobeko) ngu push into start page (kwafika undwendwe), ukunika ukhetho yesenzo kuye.

Okulandelayo tyhala phezulu kwephepha ukubeka into, wakhethwa omenyiweyo. pop buyisela libuyise umva. Move on - kuhlabana elilandelayo, kwaye ngokunjalo incoko iya kuyilwa le ndwendwe yangoku. Oku kunokuba luncedo njenge umqambi ngokwemiqathango amava kunye manani, nokubonelela yeNavigeyishini kuyo intlanganiso yangoku wesiza.

Watshisa izitha zengqolowa, nokuba kukho uluhlu lombutho data

Kukho imisebenzi emininzi ezibangelwa kufuna ukhetho oluninzi. Ukuba ukhetha ukuphumeza iseti ukuba okanye ityala ingxelo, ufumana enkulu, ende branched iimeko 'ityholo ".

Ngokwesiqhelo, akukho isisombululo embi, kodwa xa ufuna ukutshintsha into, kudala khumbula ukuba yintoni na imeko, ukuba babe njani, kwaye izothola ingabonakaliyo into ebhalwe kuzo, kwaye ezingemnandi, inokuba ngumthombo nzima ukubona iimpazamo.

Ngoncedo mfumba phantse kuzo zonke iimeko, onokuyenza lula.

Kukho ingxaki: kufuneka ukhethe umboneleli evela kwamakhulu ezikhoyo. igcisa nganye ungenza into ngaphandle kwezithuba ezintathu (ukusuka kwelinye ukuya mathathu kuyo nayiphi na zidityaniswe):

• t - ukwenza ulondolozo;
• s - linokuyiqhuba ngokupheleleyo ukulungiswa;
• i - unelungelo lokwenza ulungiso kweziqinisekiso.

Ukuze ukhethe ngokukhawuleza Order soLawulo kunye uhlobo olufanelekileyo (uhlobo lomsebenzi), unako ukwenza imisebenzi emithathu JavaScript push kwaye uhlangane uluhlu ibe umtya omnye.

Ukufuna kumgca ngomgca kusoloko icace ngaphezu iimeko ezininzi. Le meko elula abathathu kuphela kwi iinketho amathathu, kodwa apha kuya kubakho ikhowudi baninzi ngaphezu xa uthelekiso imigca emibini kuphela.