Alter the command from 'require' to an 'import'

Utilizing https://www.npmjs.com/package/json-bigint with native BigInt functionality has been a challenge. In the CommonJS environment, the following code is typically used:

var JSONbigNative = require('json-bigint')({ useNativeBigInt: true });

I am curious about the equivalent ES6 syntax for achieving this functionality. The following approach does not seem to work:

import * as JSONBigIntWrapper from 'json-bigint';
const JSONBigInt = JSONBigIntWrapper({useNativeBigInt: true});

This results in an error message stating that JSONBigIntWrapper is not a function.

What are the general guidelines for converting import statements when rewriting code?

javascripttypescriptecmascript-6commonjs

Answer №1

When using ES6 imports, bringing in * does not perform the same action as require().

To access the default module export, you can use the syntax demonstrated in the code snippet below

import name_of_default_module, {} from 'json-bigint'

Answer №2

When importing the default export from a module, you can depend on using the default keyword.

import {default as _JBI} from 'json-bigint';
const JSONBigNative = _JBI({useNativeBigInt: true});

This is the only syntax that will work with dynamic import syntax:

const {default: _JBI} = await import('json-bigint');
const JSONBigNative = _JBI({useNativeBigInt: true});

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