Question

In this code, what values of myVar will behave as true and false?

if(myVar){}

In JavaScript for example, the following values are falsy

null
undefined
0
''
false

Answer 1

Object

false if the instance is null; true otherwise

String

false if the value is null or the empty string ""; true otherwise

Number, int, or uint

false if the value is NaN or 0; true otherwise

null

false

From here.