How to loop iterate single value with array?

Question

How do I achieve this in Javascript?

My problem is e.g. templateMonth (string/single line value); templateName (array value)

const a = 2022-01
const b = ['HD-HD1460', 'HD-WHITE', 'HD-YHS']

My desired output is

2022-01; HD-HD1460 
2022-01; HD-WHITE
2022-01; HD-YHS

Thank you.

Did you tried something ? – Marius ROBERT Jun 22 '22 at 07:32 — Marius ROBERT, Jun 22 '22 at 07:32

score 3 · Answer 1 · edited Jun 22 '22 at 07:47

3

Just loop through all elements in b and simply output a in the loop. The loop has access to variables outside of it.

Your a should also be changed to a string, since 2022-01 will substract 1 from 2022, probably not what you intended.

const a = '2022-01'
const b = ['HD-HD1460', 'HD-WHITE', 'HD-YHS']

b.forEach(item=>console.log(`${a}; ${item}`))

Consider searching the internet for JavaScript documentation and tutorials and make a first effort yourself.

edited Jun 22 '22 at 07:47

Peter Krebs

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answered Jun 22 '22 at 07:34

Usama Masood

141
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Fix that `forEach` and you get a vote. – DustInComp Jun 22 '22 at 07:44
1

Oh I fixed it for Usama, wanted to make this a snippet as well :) – Peter Krebs Jun 22 '22 at 07:48
Sorry, I just realised mine is an object. So now I want iterate over a specific field in an object. – ely27 Jun 22 '22 at 08:12

score 1 · Answer 2 · answered Jun 22 '22 at 07:48

you can combine them into an array of object or if you needjust the console.log you can do as @Usama Masood suggested

const a = '2022-01'
const b = ['HD-HD1460', 'HD-WHITE', 'HD-YHS']

const combined = b.map(name => ({date: a, name}))

combined.forEach(c => console.log(`${c.date} ${c.name}`))

//or simply

b.forEach(i => console.log(`${a} ${i}`))

How to loop iterate single value with array?

2 Answers2