This references to Buffer makes this library incompatible in the browser because Buffer is part of the node API and is not available in the browser. Given that this library is imported by several other libraries that aim to make use of it in the browser, would you ever consider removing this reference?

Later versions of Angular (6+) have tightened their compile-time requirements to alert node-specific references like this which is why these issues are being surfaced now.

It looks like the API has been "Deprecated since: v4.0.0" from Node.

A list of all the exported functions would be great for a start.
I'd be happy to help you with this.

Thanks.

Hello,

Could you please specify what is the license type?

Thanks,

-- Tito

Looks like the files property (https://docs.npmjs.com/files/package.json#files) is not used in package.json to specify the included files, nor is the .npmignore file (https://docs.npmjs.com/misc/developers#keeping-files-out-of-your-package) is being used for blacklisting unwanted files, for the package published to npm.

Would you consider adding either the files property or the .npmignore file, so that the resulting package file would have smaller size?

The current size can be seen when executing the command npm pack (https://docs.npmjs.com/cli/pack).

This issue was create via tawata

I get the following in an angular v8 application. This was not in issue in earlier release (v8-)
Any ideas?

Uncaught ReferenceError: Buffer is not defined
    at Object../node_modules/core-util-is/lib/util.js (util.js:103)
    at __webpack_require__ (bootstrap:79)
    at Object../node_modules/comment-json/src/array.js (array.js:2)
    at __webpack_require__ (bootstrap:79)
    at Object../node_modules/comment-json/src/parse.js (parse.js:14)
    at __webpack_require__ (bootstrap:79)
    at Object../node_modules/comment-json/src/index.js (index.js:1)
    at __webpack_require__ (bootstrap:79)
    at Module../src/app/services/customer.service.ts (customer-tag-type.service.ts:9)
    at __webpack_require__ (bootstrap:79)

Hi,

I got this error when i try to intall this module by npm install.

npm ERR! Error: ENOENT, open '/Users/mitsuishihidemi/idea/artifacts/ui_war_exploded/v3/node_modules/core-util-is/package.json'

can someone help me?

thanks

@isaacs I'm using cheerio in React Native, which depends on this package. Unfortunately it throws an error because Buffer is undefined until the entry point index.js of the app (via feross/buffer), at which point this module has already been imported.

Would you be interested in a PR to support this use case? The relevant change is fairly simple: mjmasn@a559d4e

I published a scoped package with the fix but ideally would be able to use the official package. Any thoughts?

(node) warning: Recursive process.nextTick detected. This will break in the next version of node. Please use setImmediate for recursive deferral.

util.js:35
var str = String(f).replace(formatRegExp, function(x) {
^
RangeError: Maximum call stack size exceeded

There is a log from appveyor:

npm ERR! Windows_NT 6.3.9600
npm ERR! argv "C:\\Program Files (x86)\\nodejs\\\\node.exe" "C:\\Program Files (x86)\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "install"
npm ERR! node v0.12.7
npm ERR! npm  v2.11.3
npm ERR! path C:\Users\appveyor\AppData\Roaming\npm-cache\core-util-is\1.0.1\package\package.json
npm ERR! code EPERM
npm ERR! errno -4048

npm ERR! Error: EPERM, rename 'C:\Users\appveyor\AppData\Roaming\npm-cache\core-util-is\1.0.1\package\package.json'
npm ERR!     at Error (native)
npm ERR!  { [Error: EPERM, rename 'C:\Users\appveyor\AppData\Roaming\npm-cache\core-util-is\1.0.1\package\package.json']
npm ERR!   errno: -4048,
npm ERR!   code: 'EPERM',
npm ERR!   path: 'C:\\Users\\appveyor\\AppData\\Roaming\\npm-cache\\core-util-is\\1.0.1\\package\\package.json',
npm ERR!   parent: 'readable-stream' }
npm ERR! 
npm ERR! Please try running this command again as root/Administrator.

npm ERR! Please include the following file with any support request:
npm ERR!     C:\projects\tars\npm-debug.log

What's with this patch file?

https://github.com/isaacs/core-util-is/blob/master/float.patch