Proper way to parse Boolean query string param in node/express

Docs if you are using query-string

const queryString = require('query-string');queryString.parse('foo=true', {parseBooleans: true});//=> {foo: true}

javascript node.js express query-string

I use this pair of lines:

let test = (value).toString().trim().toLowerCase(); let result = !((test === 'false') || (test === '0') || (test === ''));

javascript node.js express query-string

Here is my generic solution for getting a query params as a boolean:

const isTrue = Boolean((req.query.myParam || "").replace(/\s*(false|null|undefined|0)\s*/i, ""))

It converts the query param into a string which isthen cleaned by suppressing any falsy string.Any resulting non-empty string will be true.

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