How to make a MongoDB index with using a variable in Node.js?

Question

I am using createIndex() in MongoDB in Node.js. I was wondering how I could insert a variable into createIndex.

For instance I have var x = "insert". I would like to make an index called "insert" by using x. I have tried createIndex({x:1}) but all this does is make x the index.

cheekujha · Accepted Answer · 2018-08-06 10:29:50Z

1

In es6

createIndex({[x]:1})

In es5

var indexQuery = {};
indexQuery[x] = 1;
createIndex(indexQuery);

answered Aug 6, 2018 at 10:29

cheekujha

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1 Comment

Personhere Over a year ago

Thank you forgot the exact syntax your a life saver.

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