JavaScript arrays and loops combination question

[mindauggas]

var lost = [4, 8, 15, 16, 23, 42];
var count = lost.length;

var isLost = function (n) {
for (i=lost[0]; i<count; i=lost[i+1]) {
if ( n === lost) {
return "true";
}
}
return "false";
};

is it possible to in corporate array positions into the for loop? (i)
do I even begin to approach the correct "incorporation"? (ii)

 

[Filip Larsen]

As I understand your questions:
(i) Use i = i+1, or i++ as the increment.
(ii) You would want to return the boolean literals true or false instead of their string representation. You may also want to check out the array indexOf operation [1].

[1] http://www.w3schools.com/jsref/jsref_indexof_array.asp

 

[Borg]

You should do something like this to read the contents of an array. Don't forget to declare var i and n (whatever that is):

for(var i = 0; i < lost.length; i++){
    if(n == lost[i]){
        return true;
    }
}

is it possible to in corporate array positions into the for loop? (i)
do I even begin to approach the correct "incorporation"? (ii)

var i in the for loop is the position of the array that you are examining.

 

[mindauggas]

Thanks.

 

[LudusRex]

(i) Yes, it is possible to incorporate array positions into the for loop by using the variable i to represent the index of the array. For example, the for loop could be written as: for (i = 0; i < count; i++). This way, i will start at 0, which is the first index of the array, and increment by 1 until it reaches the length of the array.

(ii) To correctly incorporate array positions into the for loop, you can use the variable i as the index of the array within the loop. For example, instead of using lost[0] as the starting point, you can use lost to represent the first element of the array in each iteration of the loop. This way, the loop will go through each element of the array, starting from the first one, and check if it is equal to the input n.