I am currently diving into typescript and I have observed that the code output always defaults to using var. Is there a way to make it output const and let in the .js file instead, or does typescript always require es5 output for some reason?
Thanks.
Here is an example:
// main.ts
const x: number = 2;
let y: string = 'hello';
// main.js
var x = 2;
var y = 'hello';
If this kind of output is possible, how exactly can one achieve it?
// main.js
const x = 2;
let y = 'hello';
If you want to set a specific target for compilation, simply include compiler flags like --target es6. For more information, check out this related question: How do I transpile TypeScript to ES6?
After including tsconfig.js and configuring it as follows:
{
"compilerOptions": {
"target": "es2015"
}
}
I was still encountering issues.
However, when I executed npx tsc instead of npx tsc xxx.ts, I was able to resolve the problem and received 'const'.
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