Module build failed: SyntaxError: Unexpected token regarding quotation marks

Question

Why is it giving this error when i surround the key with quotation marks?:

data[0].push({ "col" + (i+1): results.data[i].id});

Alberto Trindade Tavares · Accepted Answer · 2017-07-07 19:43:26Z

3

data[0].push({ ["col" + (i+1)]: results.data[i].id});

EDIT: If you are able to use ES6, you can also use template literal, as suggested by Ismael:

data[0].push({ [`col${i+1}`]: results.data[i].id});

answered Jul 7, 2017 at 19:38

10.5k6 gold badges42 silver badges49 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

If it is to use ES6, why not { `col${i + 1}`: ... }? And I'm almost sure that this works in any version of JavaScript.

Yes, with template literal, it still better. Nice suggestion