using variable to retrieve item from array

Question

I am wanting to set a variable to change the number value to get the correct array item

Console.log this and i get what i need , but any attempts made to add a variable are not working

// This works
lastKickoffTime = m_nfl_schedule_ar.w_5.slice(-1).pop().kickoff

Attempts that have not worked

weekNum = "5";

lastKickoffTime = m_nfl_schedule_ar.['w_'+weekNum].slice(-1).pop().kickoff

lastKickoffTime = m_nfl_schedule_ar.w_[weekNum].slice(-1).pop().kickoff

lastKickoffTime = m_nfl_schedule_ar.w_weekNum.slice(-1).pop().kickoff

lastKickoffTime = m_nfl_schedule_ar.w_+weekNum+.slice(-1).pop().kickoff

lastKickoffTime = m_nfl_schedule_ar.w_'+weekNum+'.slice(-1).pop().kickoff

It would help much if you include the data of m_nfl_schedule_ar so we could reproduce this. — Carsten Løvbo Andersen
– Carsten Løvbo Andersen, Commented Sep 27, 2022 at 20:03

IT goldman · Accepted Answer · 2022-09-27 20:08:00Z

1

lastKickoffTime = m_nfl_schedule_ar.['w_'+weekNum].slice(-1).pop().kickoff is almost right. should be:

lastKickoffTime = m_nfl_schedule_ar['w_'+weekNum].slice(-1).pop().kickoff

answered Sep 27, 2022 at 20:08

IT goldman

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3 Comments

Michael Shackelford Over a year ago

now why in the heck does it work without the dot , makes no sense to me , but thansk !

IT goldman Over a year ago

it's either "dot notation" or "bracket notation"

Carsten Massmann Over a year ago

.slice(-1).pop() can be replaced by .at(-1).

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