vscode cannot perform smart prompts on js

1. Install typings.

npm install typings --global

2. Initialize typings under the project.

typings init

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3. Add jsconfig.json under the project. The content is as follows:

{ // See https://go.microsoft.com/fwlink/?LinkId=759670 // for the documentation about the jsconfig.json format "compilerOptions": { "target": "es5", "module": "commonjs", "allowSyntheticDefaultImports": true }, "exclude": [ "node_modules", "bower_components", "jspm_packages", "tmp", "temp" ] }

4. Install the desired prompts.

typings install dt~node --global --save typings install express --ambient --save

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