# Learn Basic Algorithmic Thinking by Building a Number Sorter - Step 27

### Tell us what’s happening:

Sorry, your code does not pass. Don’t give up.

After your nested `for` loop, you should declare a `temp` variable.
but thats what i did

const selectionSort = (array) => {
for (let i = 0; i < array.length; i++) {
let minIndex = i;

``````for (let j = i + 1; j < array.length; j++) {
console.log(array, array[j], array[minIndex]);
if (array[j] < array[minIndex]) {
minIndex = j;

}
};
temp = array[i];
array[i] = array[minIndex];
array[minIndex] = temp;
``````

}
}

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### Challenge Information:

Learn Basic Algorithmic Thinking by Building a Number Sorter - Step 27

``````const selectionSort = (array) => {
for (let i = 0; i < array.length; i++) {
let minIndex = i;

for (let j = i + 1; j < array.length; j++) {
console.log(array, array[j], array[minIndex]);
if (array[j] < array[minIndex]) {
minIndex = j;
}
};
let temp = array[i];
array[i] = array[minIndex];
array[minIndex] = temp;

}
}
``````

error After your nested `for` loop, you should declare a `temp` variable.
but thats what i did

stuck for more than hour

``````const selectionSort = (array) => {
for (let i = 0; i < array.length; i++) {
let minIndex = i;

for (let j = i + 1; j < array.length; j++) {
console.log(array, array[j], array[minIndex]);
if (array[j] < array[minIndex]) {
minIndex = j;
}
}

const temp = array[i];
array[i] = array[minIndex];
array[minIndex] = temp;
}

}
``````
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The latest code you have posted is passing for me. I have blurred it to avoid spoilers.

1 Like