late variables The keyword late can be used to mark variables that will be initialized later, i.e. not when they are declared but when they are accessed . This also means that we can have non-nullable instance fields that are initialized later: Accessing value before it is initialized will throw a runtime error.
Read moreWhat is late variable?
late variables The keyword late can be used to mark variables that will be initialized later, i.e. not when they are declared but when they are accessed . This also means that we can have non-nullable instance fields that are initialized later: Accessing value before it is initialized will throw a runtime error.
Read moreHow do I know if optional parameter exists in darts?
It turns out that Dart does indeed have a way to ask if an optional parameter was provided when the method was called. Just use the question mark parameter syntax .
Read moreHow do I know if optional parameter exists in darts?
It turns out that Dart does indeed have a way to ask if an optional parameter was provided when the method was called. Just use the question mark parameter syntax .
Read moreWhat does Late mean in Dart?
The late keyword By declaring a non-nullable late variable , we promise that it will be non-null at runtime, and Dart helps us with some compile-time guarantees.
Read moreWhat does Late mean in Dart?
The late keyword By declaring a non-nullable late variable , we promise that it will be non-null at runtime, and Dart helps us with some compile-time guarantees.
Read moreWhat is late modifier Dart?
the late modifier is part of the new null-safety by dart it’s used to tell the compiler to treat this variable as non-nullable and will be initialized later without it the compiler will treat the variable as nullable and give error. late String name; @override void initState() { super.
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