My task is:
- To create a function called,
indexOfRepeatedValue(arr)
, - To create a
firstIndex
variable inside that function, - To check (using a
for
loop) which number (in a given array) repeats itself as first, - And to assign the index of that number to the previously created
firstIndex
variable
The given array of values is this,
const givenArr = [2, 4, 5, 2, 3, 5, 1, 2, 4];
So, for this given array the first number to be repeated is 2. Then the value of firstIndex
variable should be equal to 0 (after returning the value of firstIndex
variable from inside that function).
My code so far looks like this,
const givenArr = [2, 4, 5, 2, 3, 5, 1, 2, 4]; function indexOfRepeatedValue(arr) { let firstIndex; for (let i = 0; i < arr.length; i++) { if (arr[i] === ) { //The place where I clearly miss something firstIndex = ; } break; } return firstIndex; } console.log(indexOfRepeatedValue(givenArr));
I have no idea what to put inside that if
statement. Using of indexOf
function, or something like that, is prohibited (hadn't learned that yet). Thanks in advance! I'm hungry to learn.
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