There are two ways to create nullable variable. 1) Using var keyword, Syntax : var variable_name;2) Using datatypeSyntax : int? variable_name; Nullable variable creation using…
There are two ways to declare variables in dart language.1st: Using ‘var‘ keyword.2nd: Writing the datatype as a prefix. // Using var keyword main(){ var…
1st set username using git bash git config user.name "Abc" 2nd set email using git bash git config user.email "abc@mail.com" 1st check username using git…
We use lambda keyword for creating lambda function.Syntax : lambda parameter1,parameter2,..:expression We have to write single expression in lambda function. Lets see some examples 1st…
$1, $2 refers the capturing groups. $1 means first capturing group$2 means first capturing group…. etc.These are mainly used for replacement. Lets see an exampleWe…
