Skip to content

Prevent ReferenceError when running graphql in the browser #1562

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Closed
wants to merge 2 commits into from
Closed

Prevent ReferenceError when running graphql in the browser #1562

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
e84f091
Prevent ReferenceError when running in the browser
bennypowers Oct 28, 2018
2e18be2
Uses expanded getGlobal from es6-shim
bennypowers Feb 5, 2019
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
34 changes: 33 additions & 1 deletion src/jsutils/instanceOf.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -16,9 +16,41 @@ declare function instanceOf(
constructor: mixed,
): boolean %checks(value instanceof constructor);

function getGlobal() {
/* global window self */
if (
typeof self !== 'undefined' &&
self.self === self &&
self.Array === Array &&
self.setInterval === setInterval
) {
return self;
}
if (
typeof window !== 'undefined' &&
window.window === window &&
window.Array === Array &&
window.setInterval === setInterval
) {
return window;
}
if (
typeof global !== 'undefined' &&
global.global === global &&
global.Array === Array &&
global.setInterval === setInterval
) {
return global;
}
throw new Error('Cannot find the global object');
}

const production =
getGlobal().process && getGlobal().process.env.NODE_ENV === 'production';

// See: https://expressjs.com/en/advanced/best-practice-performance.html#set-node_env-to-production
// See: https://webpack.js.org/guides/production/
export default (process.env.NODE_ENV === 'production'
export default (production
? // eslint-disable-next-line no-shadow
function instanceOf(value: mixed, constructor: mixed) {
return value instanceof constructor;
Expand Down