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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.
879
You can use a for loop to create a list of elements in three steps: Instantiate an empty list. Loop over an iterable or range of elements. Append each element to the end of the list.
Iterating over a list can also be achieved using a while loop. The block of code inside the loop executes until the condition is true. A loop variable can be used as an index to access each element.
You can also loop through a list using a for loop in conjunction with the built-in Python range() method: for element in range(len(my_list)): print(f"I bought {my_list[element]}!")
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.
164
there are may methods to get a loop from list for example we have this type of list
var mylist = [6, 7 ,9 ,8];
using for each method
mylist.forEach((e){
print(e);
});
using for Loop
for (int i=0 ; i<mylist.length; i++){
var e = mylist[i];
print(e);
}
Enhanced For loop
for (var e in mylist){
print(e);
}
using while loop
var i = 0;
while(i < mylist.length){
print(mylist[i]);
i++;
}
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