javascript - import React, { Component } from 'react'; What is the {} part? -


pretty simple, can explain me part between curly braces is?

i understand add , can remove react "extends react.component" not sure use of or reasoning behind it.

it allows import single member if require. in case provided may not useful other ones. example:

// constants.js export const test_const = 'hola'; export const other_test_const = 'yo';  // somefile.js import { test_const } './constants';  console.log(test_const); // output: 'hola'

hope helps little. theres great description of module system on mdn.

https://developer.mozilla.org/en-us/docs/web/javascript/reference/statements/import


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