dart - How to Loop through a list of elements

Question

My question is very simple, how can i create a loop that will loop a simple list of elements.

List li=["-","","|","/"];

this is my dart list and i want to create this simple animation.

Answer 1

Different ways to Loop through a List of elements

1 classic For

for (var i = 0; i < li.length; i++) {
  // TO DO
  var currentElement = li[i];
}

2 Enhanced For loop

for(final e in li){
  //
  var currentElement = e;
}

Notice the keyword final. It means single-assignment, a final variable's value cannot be changed.

3 while loop

var i = 0;
while(i < li.length){
  var currentElement = li[i];
  i++;
}

For the while loop, you will use var to reassign the variable value.