An warware: Kashe duk ayyukan kumburi

Babban matsalar da ke da alaฦ™a da Kashe duk hanyoyin kumburi shine cewa yana iya haifar da rushewa da lalacewa da yawa ga tsarin kwamfutarka. Ana iya amfani da wannan umarni don kashe duk hanyoyin da ke kan kwamfuta, amma kuma yana iya haifar da wasu matsaloli idan ba a yi amfani da su daidai ba. Idan kun yi amfani da wannan umarni ba tare da sanin abin da yake yi ba, zai iya lalata tsarin kwamfutar ku kuma ya yi wahalar gyarawa.

pkill -9 node

Ana amfani da wannan layin lambar don kashe tsarin kumburi. Ana amfani da zaษ“in -9 don kashe tsarin nan da nan.

iri-iri

Tsari shine tarin bayanai wanda za'a iya shiga ta amfani da lambar fihirisa. Ana bayyana tsararraki ta amfani da kalmar var kuma suna iya samun kowane adadin abubuwa. Kashi na farko a cikin tsararru yana a index 0, kashi na biyu yana a index 1, da sauransu.

Don samun dama ga wani abu a cikin tsararru, kuna amfani da lambar fihirisar da sunan kashi ya biyo baya. Misali, don samun damar kashi na uku a cikin tsararru mai suna myArray, zaku yi amfani da myArray[3].

Hakanan zaka iya amfani da maฦ™allan murabba'i don nuna cewa kana son samun dama ga duk abubuwan da ke cikin tsararru. Misali, myArray[0] zai dawo da kashi na farko a cikin array, myArray[1] zai dawo da kashi na biyu a cikin array, da sauransu.

Booleans

Boolean nau'in bayanai ne wanda zai iya wakiltar ko dai ฦ™imar gaskiya ko ta ฦ™arya. A cikin JavaScript, Booleans ana wakilta ta nau'in Boolean.

Don ฦ™irฦ™irar boolean a JavaScript, kuna amfani da aikin bool(). Wannan aikin yana ษ—aukar gardama guda biyu: kirtani mai wakiltar ฦ™imar da za a bincika da mai aiki na boolean (misali daidai, ba daidai ba). ฦ˜imar dawowar bool() gaskiya ce idan kirtani tana wakiltar ฦ™ima ta gaskiya kuma ta ฦ™arya idan tana wakiltar ฦ™ima ta ฦ™arya.

Ga misali da ke bincika ko kirtan โ€œgaskiyaโ€ daidai yake da โ€œgaskiyaโ€ na boolean:

idan (bool ("gaskiya") == bool ("gaskiya")) {// Code don aiwatarwa lokacin da 'gaskiya' daidai yake da 'gaskiya' } kuma {// Code don aiwatarwa lokacin da 'ฦ™arya' daidai yake da 'gaskiya' ' }

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