change typescript version to exact or make it peerDependency

[Hotell]

Are you requesting a feature or reporting a bug?

none of them, rather a build change

What is the current behavior?

If I use TS version 2.2.2 for instance in my project, and install testcafe, which has ^ in typescript package version ( which will install latest version till 3 ), my whole build will start to break, because testcafe's TS dependency overrides my older version -> what does it mean?

node_modules/.bin/tsc -> will symlink to testcafe/node_modules/typescript,
so when I run yarn tsc during my build tsc version 2.4.2 will run ( which had breaking changes by means of stricter type checking ) and my build will not pass, which is very unfortunate

similar issue like
TypeStrong/typedoc#556

What is the expected behavior?

making typescript peerDependency or fixing version in dependencies to oldest possible.

Specify your

• operating system: OSX/Win 10
• testcafe version: 0.16.2
• node.js version: 8.x

[inikulin]

Testcafe has ^2.2.2 version specified in package.json, which means it will install latest 2.x.x and never any other major version. Also, package manager shouldn't override binary bindings in project root node_modules with transitive dependency version if their semver range doesn't overlap. So, it's either bug in yarn or something is wrong with your project configuration.

[Hotell]

Testcafe has ^2.2.2 version specified in package.json, which means it will install latest 2.x.x and never any other major version.

Don't you worry I know what ^ means :)

As I've said, using ^ versioning especially for typescript is very wrong as they are not following semver for breaking changes

So, it's either bug in yarn or something is wrong with your project configuration.

yup you definitely right here, just tried id with npm 5.3 and it behaves as it should

[lock]

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