Unknown option in node querystring library

Question

The parse module in querystring lib lists the following.

querystring.parse(str[, sep[, eq[, options]]])

I've also seen the following code

const { parse } = require('querystring')

...

let actual = parse(queryString)[queryStringPropName]

Why is the array appended after parse(queryString) and more importantly, why does it work?

The array-appending was not seen in querystring's API page in NodeJS.

Can anyone explain?

Minwoo Jung · Accepted Answer · 2019-03-15 10:58:59Z

1

That's because parse(queryString) is an object and in this case, [queryStringPropName] is not an array, it is to access a prop of the object parse(queryString)

answered Mar 15, 2019 at 10:58

Minwoo Jung

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