# Learn Basic Algorithmic Thinking by Building a Number Sorter - Step 34

### Tell us what’s happening:

Hi all, I cannot see where my mistake is. Error message says " Your `while` loop should have a condition that checks the value of `array[j]` is greater than `currValue`."

``````Here is my code
const insertionSort = (array) => {
for (let i = 1; i < array.length; i++) {
const currValue = array[i];
let j = i - 1;
while (j >= 0 && array[j] > currValue, j--){

}
}
}
``````

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### Challenge Information:

Learn Basic Algorithmic Thinking by Building a Number Sorter - Step 34

Hello,

decrement j inside the loop, not in the condition, and remember you need double minus for a correct syntax.

I am also being hiddered by the fCC tests!
try this:

``````while (j >= 0 && array[j] > currValue) {
array[j + 1] = array[j];
j--;
}
``````

Though, my error is with decrementing ‘j’ ; the fCC tests state, " Your `while` loop should decrement `j` inside the loop."
Which I have clearly done!
I sincerely hope that someone @pkdvalis @ilenia from fCC can Fully explain why the testing procedure is not accepting the code?!

fCC Beta DSA JS Number Sorter

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Did this work for you?

Please open a new topic for help with your code. That said, the instructions don’t ask for this line:

`array[j + 1] = array[j];`

Please stop @ ing mods and complaining about the tests. It’s pointless and disruptive. Thank you!