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  1. Truthy or Falsy Value: If we declare a number type variable and set a value that will be truthy conditionally if it’s not a zero! Every word is truthy including white space other than empty strings. But an empty array would be a truthy value. When a variable is declared but no value is assigned to it then it would be undefined. That means if we don’t define any value of a variable, javascript will count it as falsy value. If we set the value of a variable as null that would also be a falsy value. …

Md. Abu Bakar

Programmer || Web Developer || Learner || Practitioner

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