tsc is a compiler for converting TypeScript into plain JavaScript.
tsc is a compiler for converting TypeScript into plain JavaScript targeting either the ECMAScript 3 or ECMAScript 5 specifications.
Questions tagged [tsc]
927 questions
0
votes
2 answers
TypeScript error: Cannot find module 'React'
I've been trying to compile my project for several hours, I searched all over the internet, but I still don't understand why it doesn't work.
I just run npx tsc but I get this error:
$ npx tsc
src/index.ts:2:24 - error TS2307: Cannot find module…
B. Branchard
- 786
- 1
- 10
- 21
0
votes
1 answer
Do path mappings work between different projects that are being referenced?
I am having trouble getting path mapping to work between two different typescript projects in a yarn workspace setting.
I have 2 different projects in a yarn workspace. so the folder structure is as shown below.
packages
├── common
│ ├──…
Gary Becks
- 27
- 3
0
votes
1 answer
Extra files while compiling typescript code using tsc command
I created a new node development environment, installed the typescript npm module using the command.npm i --save-dev -g typescript
I created a app.ts file
app.ts
console.log("Hello World")
I tried to compile it using
tsc --extendedDiagnostics…
mrbeepot
- 3
- 1
- 4
0
votes
1 answer
Wrong build in dist/ folder when server imports module from external folder
I am using the microservice hybrid example from nestjs (https://github.com/nestjs/nest/tree/master/sample/03-microservices) to get familiar with the basics. It currently uses a microservice that is located inside the src folder (src/math). I want to…
M_M
- 71
- 2
- 5
0
votes
1 answer
Typescript exclude not working with baseUrl
I am trying to exclude some files from my typescript compilation because my editor writes temporary files that are causing extraneous recompiles when making changes. I have in my tsconfig.json:
"exclude": ["*flycheck*", "**/*flycheck*"]
I am using…
sliptype
- 2,804
- 1
- 15
- 26
0
votes
1 answer
npm-run-all failing when running a "tsc-watch" command in parallel
I am trying to use npm-run-all to manage running two servers at the same time. For one of the servers, I am trying to run it in a watch mode using tsc-watch.
The command looks like such:
"start": "tsc-watch --onSuccess \"node…
NomCereal
- 83
- 1
- 1
- 3
0
votes
1 answer
object shorthand syntax in typescript compiler
interface o {
name: string
}
const func = (obj: o): boolean => true
// this should throw error message.(or warning message at least, but it doesn't)
func({ name })
name is undefined in the code I wrote, so func({ name }) should throw an error I…
soonoo
- 867
- 1
- 10
- 35
0
votes
1 answer
Nest dependency resolution issue with tsconfig paths and barrel files/same directory imports
I've set a few different paths in tsconfig.json to make importing of controllers, entities, services, etc. easier to deal with. Relevant portion of tsconfig.json:
...
"baseUrl": "./src",
"paths": {
"@hello/controllers": [
"./controllers"
…
raychz
- 1,085
- 1
- 8
- 24
0
votes
1 answer
tsc strict mode - how to use early return to avoid "Object is possibly 'undefined'"
I have this:
const lckTemp = this.locks.get(key);
if (!lckTemp) {
log.error('Missing lock for key:', key);
return;
}
if (beginRead) {
lckTemp.readers++
}
if (endRead) {
// in case something weird happens, never let it…
user11810894
0
votes
1 answer
How to get optional opts type signature to compile - TS2394
I have this method, with 2 possibilities:
requestLockInfo(key: string, cb: EVCb): void;
requestLockInfo(key: string, opts: any, cb: EVCb): void;
requestLockInfo(key: string, opts: any, cb: EVCb) {
// implementation
…
user11810894
0
votes
1 answer
Is there a way to modify decorators option at build time?
I have an Angular standard application and I want switch some components at build time.
I want change, with one ast trasformer, the @Component decorator options like this:
login.component.ts
@Component({ selector: 'login' .... })…
gioboa
- 11
- 1
0
votes
1 answer
How to represent mixins with TypeScript
I am writing a custom mixin routine, it accepts varags of objects:
type HasIndex = {[key:string]:any};
// type RetType = ?
const mixinAll = (...v: HasIndex[]): RetType => {
return v.reduce((a,b) => doMixing(a,b,new Set()), {});
});
so my…
Alexander Mills
- 90,741
- 139
- 482
- 817
0
votes
1 answer
Transpile .ts source files without dependant configuration files
I set my node.js server in typescript this way:
/src
/...
/dist
/node_modules
/...
/tsconfig.json
/..other conf and typings files
Some files in /src get some configuration from package.json for example. This makes the transpiler creates this…
cartman
- 189
- 1
- 2
- 17
0
votes
1 answer
How do I attach custom transformers to a compiler host?
I have a custom TypeScript watcher that looks something like:
const compilerHost = typescript.createWatchCompilerHost(config.fileNames, config.options, typescript.sys, undefined, reportDiagnostic)
typescript.createWatchProgram(compilerHost)
I want…
Micah Zoltu
- 6,764
- 5
- 44
- 72
0
votes
0 answers
tsc compiler option for output of .map files?
I'm trying to seperate my .map files from my .js files after transpiling. I have set the mapRoot so the debugger knows where to locate the map files. However I cannot seem to find the option which tells tsc to transpile the .map files to said…
basickarl
- 37,187
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- 214
- 335