Conteúdo do Curso
Introduction to Dart
Introduction to Dart
1. First Acquaintance with Dart
2. Variables and Data Types
3. Conditional Statements
4. List and String
String
String
In Dart, string values can be represented using either single or double quotes. Single-line strings are represented using single or double quotes, while triple quotes are employed to represent multi-line strings.
main
String variable_name = 'value' String variable_name = "value" String variable_name = '''line1 line2''' String variable_name = """line1 Line2"""
Variable in String
In Dart, you can insert the value of a variable of any data type into the middle of a String.
Inserting variables into a String is essential for the following reasons:
- Readability and Editing Convenience: It makes the code more understandable and user-friendly, especially when you need to incorporate variable values within a
String. Instead of complex string concatenation, you can easily include them in theStringusing special syntax; - Error Avoidance: Using
Stringinterpolation helps prevent errors during string join and ensures the correct insertion of variable values, taking their data types into account; - Linguistic Flexibility: You can seamlessly combine text and variable values within strings, allowing for the creation of more dynamic and adaptable messages and strings.
These benefits enhance code clarity, reduce the likelihood of mistakes, and provide flexibility for creating engaging and comprehensible code.
main
void main() { int age = 22; print("Me ${age} years"); }
age- Variable;${}- A construction that will allow inserting to string the value from a variable.
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Seção 4. Capítulo 3
