Introducción Dart Lenguaje Flutter . Diferencia entre declaración de variable y inicialización de variable?

Retomando el gráfico anterior  …

El gráfico anterior, representa la manera de escribir ( en este caso, lenguaje Dart, para Flutter..) como crear una variable y inicializarla. Antes expliquemos brevemente que es una variable?, ok una variable es una referencia que se utiliza en todo lenguaje de programación para guardar un valor.

En nuestro gráfico hemos creado una variable , tipo string , le hemos asignado un valor por medio del operador «=» para la variable que hemos escogido ponerle «name«, esta variable le hemos asignado que sea del tipo «string» para guardar una secuencia de caracteres, en este caso el valor es «Liliana«.  Vamos a la pregunta de este post, ¿ cual es la diferencia entre declaración de variable y inicialización de variable…?

» Declaración de variable » es el proceso de encontrar una variable y asignarle un nombre. La cual podemos usar después .

En cuanto a » Inicialización de variable » es el proceso de asignarle un valor inicial a esa variable.

String  interpolación

En el siguiente video , veremos que es.. , para que se utiliza… y como se utiliza, este concepto en Dart II.

 

 

 

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