◆ JavaScript

Insert item into array at index

This is real work, not a feature someone invented — it comes from real job ads and real questions people asked. Below are four ready AI prompts: get it done, make it easy for the next person to say yes to, work out the right move when you are stuck, and stop it coming back.

4prompts

The same task, four prompts

today's deadline · the next reviewer · the stuck moment · the pattern
AExecute — do the immediate taskInsert 'newFeature' into the 'featureFlags' array at the third position, so it's active for the…+
Insert 'newFeature' into the 'featureFlags' array at the third position, so it's active for the next deployment.
when the reply comes backPush once: ask it to sharpen the weakest part, and to say what it assumed. Helpful?
BImprove — make it easier to acceptBefore I add 'newFeature' to the 'featureFlags' array, make sure it's inserted efficiently,…+
Before I add 'newFeature' to the 'featureFlags' array, make sure it's inserted efficiently, without re-allocating memory for the entire array if it's large. I need to avoid any performance hit on the live system.
when the reply comes backPush once: ask it to sharpen the weakest part, and to say what it assumed. Helpful?
CDecide — diagnose the stuck momentThe client is seeing 'newExperiment' in production, but my local tests show it's off. I'm…+
The client just reported a critical bug related to a feature flag I thought was disabled.
The client is seeing 'newExperiment' in production, but my local tests show it's off. I'm afraid I messed up the array insertion logic, maybe overwriting something critical. The lead developer is out sick, and I can't risk another outage. What's the most likely way I botched the array insertion, and what's the safest way to verify the current state without impacting users?
when the reply comes backPush once: ask it to sharpen the weakest part, and to say what it assumed. Helpful?
DBecome — change the patternI'm always second-guessing my array insertions, especially when dealing with specific indices…+
I keep introducing subtle bugs when adding new items to existing arrays, especially with specific index requirements.
I'm always second-guessing my array insertions, especially when dealing with specific indices in a live system. It feels like I'm constantly debugging off-by-one errors or unintended overwrites. What habit should I change to ensure my array insertions are always precise and safe on the first try, avoiding these recurring headaches?
when the reply comes backPush once: ask it to sharpen the weakest part, and to say what it assumed. Helpful?

Questions people actually ask

honest answers, no sign-up

Every task here was seen in the real world. Someone doing the job named it, a real job ad asked for it, or a lot of people asked about it online.

If nothing real showed a task, it is not on the page. That is the whole rule.

They are the same job approached four ways, because what you need depends on where you are.

Get it done today. Make it easy for the next person to say yes to. Work out the right move when you are stuck. Learn the pattern so the job stops coming back.

For most of these jobs it can carry the heavy thinking - draft it, sort it, check it, rehearse it with you.

It cannot sit in your chair, take the blame when a number is wrong, or notice what nobody wrote down. Let it do the first 80%. Keep the last 20% that is truly yours.

No. Copy any prompt and paste it into the AI you already use. No account, no score, no wall in the way.

Any of them. The prompts describe the work rather than naming a product, so they are not tied to one assistant.

That is also why they keep working when you switch.

Change it freely. Every prompt is a starting line, not a rule.

Put in your real numbers, your real names and your real deadline. The more you make it yours, the better the answer comes back.

The tasks come from real job ads, published job data and the questions people ask in public forums.

The steps come from JavaScript's own documentation, with practitioner sources for the traps the manual does not mention.

Push once. Ask it to sharpen the weakest part and to say what it assumed.

Most wrong answers come from a missing detail rather than a bad prompt - tell it the thing it could not know.