How to change variable during for-loop

Question

I ran into a problem with a for-loop in js. Let me try to explain my issue.

For example, we have an array

let arr = [15, 29, 44];

also we have a for loop

for (let h = 1; h < 100; h +=10) {
 
}

I need to iterate over an array inside the loop, so when h goes bigger than array it continues from the value number.

In the end I should get values like: 10, 15, 25, 35, 44, 54...

I'm trying to make a double loop, but it confuses me.

My code:

for (let h = 1; h < 100; h +=10) {
 for (var i = 0; i < arr .length; i++) {
   if(i > h) {
h=i;    
}
}
}

Does there better way to do it?

UPD. Sorry, tha arry should be let array = [{'key': 15}, {'key':29}, {'key':44}];

Thanks

Nina Scholz · Accepted Answer · 2021-12-09 20:47:29Z

1

You could take a single loop with a check if h is greater than a value from the array, then take this value instead.

const
    data = [{ key: 15 }, { key: 29 }, { key: 44 }],
    result = [];

for (let h = 10, i = 0; h < 100; h +=10) {
    if (h > data[i]?.key) h = data[i++].key;
    result.push(h);
}

console.log(...result);

edited Dec 9, 2021 at 20:47

answered Dec 9, 2021 at 19:16

Nina Scholz

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1 Comment

Vlad Zaev Over a year ago

Sorry, I made a mistake: it should be an object array let array = [{'key': 15}, {'key':29}, {'key':44}]; How to do it in that way?

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