Newlines removed in emit for argument list

[billti]

Using the latest 2.1 release, the below TypeScript

getCollection().then(
    col => console.log(col.id),
    err => console.log(err.toString())
 );

results in the below emitted JavaScript

getCollection().then(function (col) { return console.log(col.id); }, function (err) { return console.log(err.toString()); });

This makes setting breakpoints a pain in the resulting code. It would be nice if the formatting was preserved.

[srolel]

I understand you would like the output to look like this:

getCollection().then(
    function(col) {return console.log(col.id)},
    function(err) {return console.log(err.toString())}
 );

So that the newlines from the original code are preserved. But, how does this help with breakpoints? Perhaps something like this:

getCollection().then(function (col) {
    return console.log(col.id);
}, function (err) {
    return console.log(err.toString());
});

Meaning to compile arrow functions to function expressions with a multi-line body.

Daniel Rosenwasser (@DanielRosenwasser) Mohamed Hegazy (@mhegazy) What is the reasoning behind emitting functions with single-line body? Could this be removed entirely, so that any function expression, including regular function expressions, be compiled with a multi-line body?