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Periksa Apakah Variabel Tidak Terdefinisi atau null. JavaScript

Periksa Apakah Variabel Tidak Terdefinisi atau null. JavaScript

#JavaScript #null #typeof #undefined 


undefined, null
JavaScript example code

JavaScript

  Output result 
The variable is neither undefined nor null
The variable is neither undefined nor null
The variable is undefined or null
The variable is undefined or null
typeof
JavaScript example code

JavaScript

  Output result 
The variable is neither undefined nor null
The variable is neither undefined nor null
The variable is undefined or null
The variable is undefined or null
code examples and answer to questions in JavaScript programming luaguage

JavaScript

contoh kode dan jawaban atas pertanyaan dalam bahasa pemrograman JavaScript

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