Uma ususa yonke imigqa emisha ochungechungeni lwe-JavaScript, empeleni ususa zonke izinhlamvu zesikhala esimhlophe, kuhlanganise nemigqa emisha. Lokhu kungabangela izinkinga uma ulindele ukuthi iyunithi yezinhlamvu iphathwe njengeyunithi eyodwa uma idluliselwa kumsebenzi noma isetshenziswa kusisho.
from string var str = "Hello rn World"; // Outputs "Hello World" str = str.replace(/r?n|r/g, '');
Ulayini wekhodi usebenzisa indlela yokufaka esikhundleni ukuze ususe ukunqamuka komugqa ochungechungeni. Inkulumo evamile ethi /r?n|r/g ifana nanoma yiluphi uhlobo lokunqamuka komugqa, futhi iyunithi yezinhlamvu engenalutho ” ithatha indawo yokufanisa ngayinye ingasho lutho.
Amathiphu okusebenza ngemigqa
Kunamathiphu ambalwa okufanele uwakhumbule lapho usebenza ngemigqa ku-JavaScript.
Okokuqala, khumbula ukuthi imigqa ku-JavaScript imelelwa izinto. Lokhu kusho ukuthi ungakwazi ukufinyelela izakhiwo zomugqa ngamunye usebenzisa i-dot notation. Isibonelo, ukuze uthole ubude bento yomugqa, ungasebenzisa isici sobude.
Okwesibili, khumbula ukuthi imigqa ingahlukaniswa ngezinhlobo ezimbili: imigqa evamile kanye nemigqa yokuphawula. Imigqa evamile imane nje imigqa yekhodi engewona amazwana. Ngakolunye uhlangothi, imigqa yamazwana, iqala ngophawu lwe-hashi (#) futhi isetshenziselwa ukubeka amazwana izigaba zekhodi. Ungakwazi ukukhomba imigqa yokuphawula ngokubheka umugqa oqala ngokusika kabili (//).
Okokugcina, khumbula ukuthi ungasebenzisa inombolo yomugqa ukuze ubhekise imigqa ethile kukhodi yakho. Lokhu kuwusizo ikakhulukazi lapho ususa iphutha ikhodi yakho.
