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a , b , c ?

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c ?

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Nullish ( chuqurroq ) 1.Nullish Ternary operatoridan muhimroq sanaladi. 2. Nullish operatorini OR ( || ) yoki AND ( &&) operatorlar bilan billa ishlatilishi mumkin emas. 3. Nullish operatorini Optional Chaining operatori ( ?. ) bilan ishlatilganda , Siz null yoki undefined bo'lgan objectning xususiyatiga qiymat berishingiz mumkin. 4. Nullish orqali 0 , "" , flase yoki NaN kabi False qiymatlarni saqlab qolishingiz mumkin. Bu qiymatlar OR ( || ) operatori hato deb ko'rsatadi. @abs_javascript

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Nullish qiymatlari! @abs_javascript

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Nullish operatori. Nullish mantiqiy operator. Bu operatorning asosiy maqsadi birinchi operandning qiymati null yoki undefined bo’lganda ikkinchi operandning qiymatini qaytarishdir. null ?? 23 // javob: 23 23 ?? undefined // javob: 23 false ?? 23 // javob: false @abs_javascript

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-1 || 0

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Boolean(null)

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23 || 34

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23 && 34

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if ("0") { console.log( 'Hello' ); }

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let a = 122 > 18 ? false : true ; a ?

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undefined == 0

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null <= 0

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null >= 0

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null == 0

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null > 0

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null === undefined

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null == undefined

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