Typescript debugging - variables undefined in TS but work in compiled JS
I am debugging a node app written in typescript. Breakpoints in the TS are hit, but most variables are undefined. However, those same variables ARE defined when I set a breakpoint in the compiled JS.
Any idea what is going on here? Running Webstorm 2018.1. This is my tsconfig.json:
{
"compilerOptions": {
"module": "commonjs",
"moduleResolution": "node",
"target": "es6",
"sourceMap": true,
"noImplicitAny": false,
"watch": false,
"typeRoots": [
"./node_modules/@types/"
]
},
"exclude": ["node_modules"]
}
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Usually such issues occur when the generated name doesn't match the original one, and no name mappings are provided in sourcemaps
Okay, any suggestions? I tried deleting the source maps and recompiling -- to no avail.
If a tool you are using for generating sourcemaps doesn't support name mappings (
"names":[] is missing or empty) , re-generating sourcemaps won't helpDebugging previously worked fine on this project; did something change with Webstorm 2018? I am using TS 2.7.2 and the Webstorm TS service. I generated the sourcemaps simply by compiling at the command line with tsc. I tried adding "inlineSources": true to tsconfig.json. Didn't help.
"names":[] is definitely empty in each of my map files, but according to this issue - https://github.com/Microsoft/TypeScript/issues/9627 - TS doesn't support this feature anyway. So I think they've always been empty. I took a look at other people's map files; their "names":[] are empty too.
>did something change with Webstorm 2018?
there are no issues I'm aware of.
Can you provide a project that can be used for recreating the issue?