#Dart - Guide to Solve different kinds of Problems

In this example, you will learn to combine or merge two or more maps in one map in Flutter or Dart. Sometimes, you may need to combine multiple hasMap into one map while building the mobile app.

In this post, we are going to show you how to capitalize the first letter of the string, or the first letter of each word, the first letter of a sentence in Flutter and Dart. These code examples ignore the white space and capitalize accordingly.

In this example, you will learn how to check the Key index or value exists or not in Array List in Flutter or Dart. See the example below, we have shown an example to check key index or value in Array List.

In this post, we are going to show how to extract alphabets or numbers only from String by removing special characters. We will use RegEx expression to remove special characters from String in Dart or Flutter.

In this example, we are going to show you how to strip HTML tags from String in Dart/Flutter. Using the example below, you can convert any kind of HTML to String in Flutter.

In this example, we are going to show you how to show you the cause and solution of the ʺNull check operator used on a null valueʺ error in the Flutter App.

In this post, we are going to show you the array List basis of Dart/Flutter. In Dart, the array is called List. In this article, you will learn example-wise how to create and use Array in Dart or Flutter.

In this example, we are going to show you how to filter the List array with some value of conditions and get a filtered array in Dart or Flutter.

In this example, we are going to show you how to delete decimal point length with round and without a round in Dart or Flutter.

In this example, we are going to show you how to convert or parse the String variables to int or double in Dart and Flutter. You may need to convert string to int or double for mathematical purposes.

In this example, we are going to show you how to fix all error message warnings ʺPrefer const with constant constructorsʺ in Flutter/Dart. You can ignore an individual message, but it’s annoying to fix it all at the same time.

It is annoying sometimes to see an auto comment or auto close labels generated by Dart extension on Visual Studio code during Flutter App building. The auto comment/closing labels look like below.