Inkinga enkulu ngesixhumanisi se-jQuery ukuthi singasetshenziswa ukudala izixhumanisi ezisebenza ngokuzenzakalelayo lapho umsebenzisi echofoza kuzo. Lokhu kungaba yinkinga uma ufuna ukuvimbela abasebenzisi ekusebenziseni izixhumanisi ngokuzenzakalela, noma uma ufuna ukudinga ukuthi abasebenzisi bachofoze isixhumanisi ngaphambi kokuthi bafinyelele okuqukethwe exhuma kukho.
jQuery code: $(document).ready(function(){ $("a").click(function(){ alert("Hello world!"); }); }); When the above code is executed, it will display an alert message saying โHello world!โ
uma umsebenzisi achofoza kunoma iyiphi isixhumanisi ekhasini.
Umugqa wokuqala wekhodi usebenzisa umsebenzi we-jQuery ukwenza ikhodi uma idokhumenti isilungile. Lokhu kusho ukuthi ikhodi izosebenza kuphela lapho idokhumenti ye-HTML isilayishwe esipheqululini.
Umugqa wesibili wekhodi usebenzisa isikhethi se-jQuery ukuze ukhethe zonke izinto ezithi โaโ ekhasini. I-elementi ethi โaโ iyingxenye yesixhumanisi.
Umugqa wesithathu wekhodi usebenzisa isibambi somcimbi we-jQuery ukuhlanganisa umsebenzi kumcimbi wokuchofoza wazo zonke izici "a" ekhasini. Lo msebenzi uzokwenziwa uma umsebenzisi achofoza kunoma iyiphi into ethi โaโ ekhasini.
Umugqa wesine wekhodi uqukethe umsebenzi ozokwenziwa uma umsebenzisi achofoza kunoma iyiphi into ethi โaโ ekhasini. Lo msebenzi uzobonisa umlayezo wokwazisa othi "Sawubona mhlaba!"
CDN
I-CDN inethiwekhi yokulethwa kokuqukethwe, okuwuhlelo olukhulu futhi olusabalalisiwe olusiza ukuthuthukisa ukusebenza kwamakhasi ewebhu ngokugcina kunqolobane amakhasi ewebhu afinyeleleka njalo futhi alethwe ezindaweni eziningi. Lokhu kungaba usizo kubasebenzisi abanoxhumo olunensayo noma emakhasini abuyekezwa njalo.
Yini i-Google CDN
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I-Google CDN inethiwekhi yokulethwa kokuqukethwe esiza amawebhusayithi ukuthi asabalalise okuqukethwe kwawo kahle kakhulu. Ihlinzeka ngenethiwekhi yomhlaba wonke yamaseva angasheshisa ukulethwa kwamakhasi ewebhu kubasebenzisi.
Uhlu lwe-CDN
Kunezinsizakalo eziningi ze-CDN ezinikeza ukugcinwa kwesikhashana kanye nokulethwa kwamakhasi ewebhu. Amanye ama-CDN adumile afaka i-CloudFlare, i-MaxCDN, ne-Akamai.