How to know which typescript version running on angular 4 project
AngularTypescriptAngular Problem Overview
So i did ng -v it shows me everything except typescript, so how can i check Typescript version of my angular 4 project.
Angular Solutions
Solution 1 - Angular
Open package.json file and check devDependencies node. It has typescript version used in project like below.
"typescript": "^2.4.0",
You can also use command prompt as Sajeetharan suggested in below answer.
Solution 2 - Angular
If you want the exact version installed as a package dependency use the ls command:
npm ls typescript
Alternatively, you could run tsc with the -v flag:
If installed locally:
node_modules\.bin\tsc -v
If installed globally:
tsc -v
NOTE: If you plan on checking package.json for the version number, keep in mind the caret in ^2.4.0 means you could be getting 2.4.x, 2.5.x 2.6.x, etc. The ^ tells you the minor version will automatically be updated to the latest version upon a fresh install or an npm update.
If the version number is preceeded by ~ (i.e. ~2.4.0), then the patch number is automatically updated on a new install or update. That means any of the following versions could be installed: 2.4.0, 2.4.1, 2.4.2, etc, but not 2.5.x
Solution 3 - Angular
Open command prompt , to check the globally installed version,
Type
tsc -v
and hit Enter
to check particular project version, navigate to node_modules\.bin\
./tsc -v
another way is to check the package.json inside the project folder
{
"name": "angular-quickstart",
"version": "1.0.0",
"description": "QuickStart package.json from the documentation, supplemented with testing support",
"scripts": {},
"keywords": [],
"license": "MIT",
"dependencies": {},
"devDependencies": {
"tslint": "^4.0.2",
"typescript": "~2.1.5"
},
"repository": {}
}
Solution 4 - Angular
To know the version of Typescript, use:
ng v
This will out put the typescript version and other dependence versions as well. Mine show as bellow:
@angular-devkit/architect 0.7.1
@angular-devkit/build-angular 0.7.1
@angular-devkit/build-optimizer 0.7.1
@angular-devkit/build-webpack 0.7.1
@angular-devkit/core 0.7.1
@angular-devkit/schematics 0.7.1
@angular/cli 6.1.1
@ngtools/webpack 6.1.1
@schematics/angular 0.7.1
@schematics/update 0.7.1
rxjs 6.2.2
typescript 2.7.2
webpack 4.9.2
Solution 5 - Angular
In my ubuntu 18.04 LTS with angular 7 cli installed, I typed
ng v
and it gave the output:
Node: 11.8.0
OS: linux x64
Angular: 7.2.2
... animations, common, compiler, compiler-cli, core, forms
... language-service, platform-browser, platform-browser-dynamic
... router
Package Version
-----------------------------------------------------------
@angular-devkit/architect 0.12.3
@angular-devkit/build-angular 0.12.3
@angular-devkit/build-optimizer 0.12.3
@angular-devkit/build-webpack 0.12.3
@angular-devkit/core 7.2.3
@angular-devkit/schematics 7.2.3
@angular/cli 7.2.3
@ngtools/webpack 7.2.3
@schematics/angular 7.2.3
@schematics/update 0.12.3
rxjs 6.3.3
typescript 3.2.4
webpack 4.28.4
Solution 6 - Angular
Just type on terminal:
npm ls typescript
Solution 7 - Angular
Simple answer using yarn (since other answer were using npm)
This will list the dependencies using yarn then filter only typescript
yarn list --pattern typescript
Or you can simply check the content of yarn.lock file (equivalent of package-lock.json)
grep "typescript" yarn.lock
Solution 8 - Angular
To know the typescript version which is installed on my machine, use this command in command prompt.
> tsc --version