Paunobvisa mitsva yese kubva patambo muJavaScript, unenge uchibvisa ese mavara ewhitespace, kusanganisira mitsva. Izvi zvinogona kukonzera matambudziko kana iwe uchitarisira kuti tambo inobatwa sechinhu chimwe chete painopfuudzwa kune basa kana kushandiswa mukutaura.
from string var str = "Hello rn World"; // Outputs "Hello World" str = str.replace(/r?n|r/g, '');
Mutsara wekodhi uri kushandisa nzira yekutsiva kubvisa mitsara kubva patambo. Chirevo chenguva dzose /r?n|r/g chinoenderana nemhando ipi neipi yemutsara, uye tambo isina chinhu ” inotsiva mutambo wega wega pasina chinhu.
Mazano ekushanda nemitsara
Pane matipi mashoma ekuchengeta mupfungwa kana uchishanda nemitsara muJavaScript.
Chekutanga, yeuka kuti mitsetse muJavaScript inomiririrwa nezvinhu. Izvi zvinoreva kuti iwe unokwanisa kuwana mutsara zvivakwa uchishandisa dot notation. Semuenzaniso, kuti uwane hurefu hwechinhu chemutsara, unogona kushandisa hurefu pfuma.
Chechipiri, yeuka kuti mitsetse inogona kupatsanurwa kuva marudzi maviri: mitsara yakajairika nemitsetse yekutaura. Mitsetse yakajairwa inongori mitsetse yekodhi isiri makomendi. Mitsetse yekutaura, kune rumwe rutivi, tanga nechiratidzo che hashi (#) uye inoshandiswa pakupa mhinduro kunze kwezvikamu zvekodhi. Iwe unogona kuziva mitsetse yekutaura nekutsvaga mutsara unotanga nekaviri slash (//).
Chekupedzisira, yeuka kuti iwe unogona kushandisa iyo mutsara nhamba yezvivakwa kuratidza mitsara chaiyo mukodhi yako. Izvi zvinonyanya kubatsira paunenge uchigadzirisa kodhi yako.
