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
8
votes
1 answer
Set --verbose option in VSCode Typescript build task
When compiling from the command line I can specify
tsc -b --verbose
However I can't figure out how to configure the default build task in vs code to do the same. I can't find any related entry in tsconfig.json or in tasks.json
grim_i_am
- 3,664
- 5
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- 19
8
votes
1 answer
Force object to have at least one key ( Object.keys(o).length > 0 )
Say I have this object
export interface Name {
[key: string]: boolean
}
const v = {};
how do I prevent this from compiling? What I want to do is force v to have at least one property:
const v = {foo: true};
user7898461
8
votes
2 answers
Is @types/core-js still necessary for TS typings in a Node.js project?
I have several backend-only Node.js projects which use a simple TypeScript config.
Before March 2018, I had this in package.json:
"devDependencies": {
"@types/core-js": "^0.9.46",
"@types/node": "^9.6.2"
}
since ~March 2018, I have been…
Alexander Mills
- 90,741
- 139
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- 817
8
votes
2 answers
AngularJS TypeScript unit testing
I am struggle with create proper unit tests for the angularjs (v1.4.9) application which contains both javascript files (with jasmine tests) and typescript files (with no tests at all, now I am trying to use Mocha, but it can be any framework).…
Michał Jarzyna
- 1,836
- 18
- 26
8
votes
2 answers
Typescript can't find a module that has been mapped with SystemJS
Typescript doesn't find the module in this import import ga from 'googleAnalytics';
SystemJS knows where to find the module, because it has been mapped up front like so:
map: {
'@angular': 'node_modules/@angular',
'rxjs':…
Maxime Dupré
- 5,319
- 7
- 38
- 72
8
votes
1 answer
Webpack with a client/server node setup?
I'm trying to set up a webpack-based flow for an Angular2 app with a node backend server. After many hours banging my head against it, I've managed to get the client to build happily, but I can not figure out how to now integrate my server build. My…
XeroxDucati
- 5,130
- 2
- 37
- 66
8
votes
3 answers
TypeScript 1.3 for Visual Studio 2013 missing SDK directory (tsc.exe)
Typescript v1.3 was announced today, so I installed the power tools update for VS2013.
After installation I can see that Visual Studio now knows about "protected" keyword and tuple types, which is great!
But then I changed the TypeScriptToolsVersion…
mrcrowl
- 1,265
- 12
- 14
8
votes
2 answers
TypeScript, node.js development with Visual Studio 2012 express
How can I write, build and run a node.js app in Visual Studio? I install the TypeScript extension on VS and the node.js package. When I create new project of type TypeScript it is only able to write script for browsers only.
Update
I want…
stonedmind
- 83
- 1
- 4
7
votes
2 answers
How can I resolve the TypeScript Compiler error "Namespace 'NodeJS' has no exported member 'Global'"?
QUESTION: How can I resolve the Typescript Compiler (tsc) error "Namespace 'NodeJS' has no exported member 'Global'"?
While running tsc, I'm all of a sudden seeing the following error in a "legacy"(not new)…
derekbaker783
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7
votes
2 answers
What's the difference between `tsc --build --clean` vs. `rm -rf *.js`?
I have a quick question on the tsc command being used with the arguments --build --clean, which I understand is used for cleaning /wiping off the .js files generated earlier by the Transpiler (tsc).
What is the speciality or significance of this…
itsraghz
- 857
- 1
- 11
- 25
7
votes
1 answer
Compile single .ts file to stdout
I am looking to compile a single .ts file to stdout, something like this:
tsc foo.ts > foo.js
is this possible somehow? I want to control where the output goes without using a tsconfig.json file.
Alexander Mills
- 90,741
- 139
- 482
- 817
7
votes
3 answers
Unsafe implicit conversion of generics in TypeScript
The TypeScript compiler tsc compiles the following code without complaints, even with the --strict flag. However, the code contains a basic bug, which is prevented in languages like Java or C#.
interface IBox {
value: T;
}
const numberBox:…
ominug
- 1,422
- 2
- 12
- 28
7
votes
3 answers
Error compiling Typescript with graphql files
So I'm new in this area, the thing is that I'm trying to compile a Typescript project with graphql files on it (with .graphqlextension).
It' based on the serverless framework, so to compile it I launch npm startwhich launches a cd src/app && tscin…
Carlos Delgado
- 552
- 7
- 23
7
votes
3 answers
How can I import an existing React component defined in JSX in a Typescript module (.tsx)
I have an existing React component that's coded in JSX and I can't convert to Typescript at this time. I'd like to make use of it in a new React application that is being written in Typescript. I cannot figure out if it's possible to import and…
Jobu
- 590
- 7
- 18
7
votes
1 answer
Why does typescript not complain about certain undefined variables
I have the following example:
class Uncle {
constructor(public name : string) { }
talk() {
return "Hello my name is " + name;
}
}
let p : Uncle = new Uncle("Jo");
console.log(p.talk());
For certain variable names, typescript (right now…
flq
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