How To Easily Use Flutter For In Loop

In this Flutter post, we will se discussing how to use Flutter for in loop. An easy Flutter example will be used to implement and explain the usage and customization of Flutter for in loop. I hope after reading this post, you will be able to easily use and customize Flutter for in loop in your own Flutter apps.

Outline

1. What is Flutter For In Loop?
2. Implementing Flutter For In Loop(Example)
3. Example
4. Conclusion

What is Flutter For In Loop?

Flutter for in loop in used when you don’t need the index of items. Index defines a specific position of an item in a list. We will now use an easy Flutter example code to explain how to use Flutter for in loop.

Implementing Flutter For In Loop(Example)

In order to understand the usage of Flutter for in loop, we will first create a list of items then apply Flutter for in loop on it. See below example.

Example

 List listOfItems=[
     'White',
     'Purple',
      6
  ];

We now have a list of dynamic values. Let’s now see how to use Flutter for in loop. See below steps:

• Use the for keyword.
• Then use the parenthesis and inside declare a variable, you can specify the type if you want or just use var with name.
• The pass the in keyword and finally pass the list of items.
• Body of for in loop is defined using curly braces.

I know this theory sounds confusing but don’t worry, below is the practical implementation of for in loop. We have printed all the values of list using for in loop in Flutter. See below code:

 for(var val in listOfItems){
    print(val);
 }

Output:

White
Purple
6

Conclusion

As a conclusion, I have discussed and practically implemented Flutter for in loop. I hope you now will easily use and customize for in loop in your own Flutter apps.  Your valuable feedback would be well appreciated.

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