Xa ususa yonke imigca emitsha kumtya kwiJavaScript, ususa onke amagama amhlophe, kuquka imigca emitsha. Oku kunokubangela iingxaki ukuba ulindele ukuba umtya uphathwe njengeyunithi enye xa ugqithiselwe kumsebenzi okanye usetyenziswe kwintetho.
from string var str = "Hello rn World"; // Outputs "Hello World" str = str.replace(/r?n|r/g, '');
Umgca wekhowudi usebenzisa indlela yokubuyisela ukususa ikhefu lomgca kumtya. Intetho eqhelekileyo /r?n|r/g ihambelana nalo naluphi na uhlobo lokuqhawula umgca, kunye nomtya ongenanto ” ithatha indawo yomdlalo ngamnye kungekho nto.
Iingcebiso zokusebenza ngemigca
Kukho iingcebiso ezimbalwa ekufuneka uzigcine engqondweni xa usebenza ngemigca kwiJavaScript.
Okokuqala, khumbula ukuba imigca kwiJavaScript imelwe zizinto. Oku kuthetha ukuba unokufikelela kwiipropati zomgca ngamnye usebenzisa ubhalo lwamachaphaza. Umzekelo, ukufumana ubude bento yomgca, ungasebenzisa ipropathi yobude.
Okwesibini, khumbula ukuba imigca inokwahlulwa ibe ziindidi ezimbini: imigca eqhelekileyo kunye nemigca yezimvo. Imigca eqhelekileyo yimigca nje yekhowudi engezizo izimvo. Imigca yezimvo, kwelinye icala, qala ngesimboli ye-hash (#) kwaye isetyenziselwa ukuphawula amacandelo ekhowudi. Uyakwazi ukuchonga imigca yezimvo ngokukhangela umgca oqala ngesisi kabini (//).
Ekugqibeleni, khumbula ukuba ungasebenzisa ipropati yenombolo yomgca ukubhekisela kwimigca ethile kwikhowudi yakho. Oku kuluncedo ngakumbi xa ulungisa ikhowudi yakho.
