Dambudziko guru rine chekuita neKill all node process nderekuti rinogona kukonzera kukanganisa kwakawanda uye kukuvadza kune komputa yako system. Uyu murairo unogona kushandiswa kuuraya maitiro ese pakombiyuta, asi unogona kukonzera mamwe matambudziko kana ukasashandiswa nemazvo. Kana iwe ukashandisa murairo uyu usingazive zvauri kuita, zvinogona kukanganisa komputa yako uye kuita kuti zviome kugadzirisa.
pkill -9 node
Iyi kodhi mutsara inoshandiswa kuuraya node process. Iyo -9 sarudzo inoshandiswa kuuraya maitiro ipapo.
Arrays
An array muunganidzwa wedata unogona kuwanikwa uchishandisa nhamba yeindex. Arrays inoziviswa uchishandisa var kiyi kiyi uye inogona kuve nechero nhamba yezvinhu. Chinhu chekutanga muhurongwa chiri pa index 0, chechipiri chiri pa index 1, zvichingodaro.
Kuti uwane chinhu mune array, unoshandisa index nhamba inoteverwa nezita rechinhu. Semuyenzaniso, kuti uwane chinhu chechitatu muchikwata chinonzi myArray, ungashandisa myArray[3].
Iwe unogona zvakare kushandisa masikweya mabhuraketi kuratidza kuti iwe unoda kuwana zvese zvezvinhu muhurongwa. Semuyenzaniso, myArray[0] yaizodzosa chinhu chekutanga muhurongwa, myArray[1] yaizodzosa chinhu chechipiri muhurongwa, zvichingodaro.
Booleans
A boolean imhando yedata inogona kumiririra kukosha kwechokwadi kana kwenhema. MuJavaScript, maBooleans anomiririrwa nemhando yeBoolean.
Kugadzira boolean muJavaScript, unoshandisa bool () basa. Iri basa rinotora nharo mbiri: tambo inomiririra kukosha kunofanirwa kuongororwa uye mushandisi we boolean (semuenzaniso kuenzana, kwete kuenzana). Kudzosa kukosha kwebool() ichokwadi kana tambo ichimiririra kukosha kwechokwadi nenhema kana ichimiririra kukosha kwenhema.
Heino muenzaniso unotarisa kana tambo "yechokwadi" yakaenzana neboolean "chokwadi":
kana (bool(“chokwadi”) == bool(“chokwadi”)) {// Kodhi yekuita kana 'chokwadi' yakaenzana ne 'chokwadi' } zvimwe {// Kodhi yekuita kana 'nhema' yakaenzana ne'chokwadi ' }
