[IntelliSense] [Salsa] Support @callback in JSDoc

[egamma]

From @santiagohdzb on March 15, 2016 3:43

Hi everyone, I'm in love with the new VS Code's Salsa, but I'm facing this issue:

I'm trying to use InselliSense with JSDoc's callback documentation.

Am I doing something wrong? How am I supposed to do this?

• VSCode Version: 0.10.11
• OS Version: Win 10

Steps to Reproduce:
1. Open a new Javascript file
2. add the code you see above

Copied from original issue: microsoft/vscode#4223

[egamma]

From @anseki on March 15, 2016 5:6

Hi @santiagohdzb,
Now, it seems that IntelliSense indicates some types other than primitive data type and Object as any.
Some types of JavaScript's built-in-object (e.g. Date, RegExp, etc.) are recognized, but some types (e.g. Array, Map, etc.) are not.
microsoft/vscode#3802

[egamma]

Moving to TypeScript for investigation.

[pisrael]

I'm having the same problem with JSCode. Any workaround?

[mhegazy]

We have recently added support for JSDOC @typedef. if you are using the nightly build, you can replace the pattern above with:

/**
 * @typedef {function(number)} addedCallback
 */

/**
 *@param {addedCallback} a
 */
var add = function (a) { 

}

[sant123]

@mhegazy is there a way to do this with TypeScript v1.8.10? Or only for the next release of TypeScript 2.0?

Thanks.

[zhengbli]

@sant123 support for @typedef is added only in 2.0, and won't be ported back to 1.8.10. You can use the nightly build via npm install typescript@next -g to use it today.