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Null check operator used on a null value

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Defeated Deer answered on October 9, 2021 Popularity 1/10 Helpfulness 1/10

answer Null check operator used on a null value

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related _TypeError (Null check operator used on a null value)

related Null check operator used on a null value

Null check operator used on a null value

Comment

if(str != null){
    len = str!.length;
}else{
    len = 0; //return value if str is null
}

Popularity 1/10 Helpfulness 1/10 Language csharp

Source: www.fluttercampus.com

Tags: c# null null-check

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Contributed on Feb 11 2022

Defeated Deer

0 Answers Avg Quality 2/10

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Null check operator used on a null value

Comment

For example:

String? foo; // Nullable String

void main() {
  var len = foo!.length; // Runtime error: Null check operator used on a null value
}
Solutions:
You need to find out where you're using the bang operator in your code. Once you are there, you can use any of the following solutions:

Use a local variable

var f = foo;
if (f != null) {
  var len = f.length; // Safe 
}
Use ?. and ??

var len = foo?.length ?? 0; // Provide a default value if foo was null.

Popularity 10/10 Helpfulness 3/10 Language kotlin

Source: Grepper

Tags: kotlin ko

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Contributed on Sep 20 2022

android developer

0 Answers Avg Quality 2/10

_TypeError (Null check operator used on a null value)

Comment

// Example Code
String? nullableValue = null;

String nonNullValue = nullableValue ?? 'Default Value';

print(nonNullValue);

Popularity 9/10 Helpfulness 1/10 Language dart

Source: Grepper

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Contributed on Sep 11 2023

YOU.com

0 Answers Avg Quality 2/10

Null check operator used on a null value

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HomeController gg = Get.put(HomeController());

Popularity 1/10 Helpfulness 1/10 Language csharp

Source: Grepper

Tags: c# null null-check

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Contributed on Oct 09 2021

Gentle Gerbil

0 Answers Avg Quality 2/10

Null check operator used on a null value

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Null check operator used on a null value

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Null check operator used on a null value

_TypeError (Null check operator used on a null value)

Null check operator used on a null value

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