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Wally Mangiliman
4,041 PointsAre variables declared inside a for loop only defined inside the loop?
If I add console.log(counter) after the for loop, the console says that counter is not defined.
tomaszfurmanczyk
Full Stack JavaScript Techdegree Student 18,242 PointsThen you are most likely doing something like this:
//this is what is usually referred to as a global scope if you were to set your variable here let counter =0; your code would //work
for(i=0; i<10;i++){
//this is the scope of the inside of the loop
let counter =0;
console.log(This is the counter:${counter});
}
1 Answer
Deloris Luckett
6,418 PointsYes if the variable is only defined in the for loop it is only known inside the loop . If you want it out side the loop you need to define it as a global variable in the function not in the for block.
benjaminfarnham
8,055 Pointsbenjaminfarnham
8,055 PointsWould help a little bit if you shared your code to fix the error but short answer is yes. Typically a variable declared in a for loop will remain in the loops scope.