Feedback on Collection Expressions · dotnet/csharplang · Discussion #7666 (original) (raw)
I'd love to be able to use collection expressions to type JSON literals. For example, https://learn.microsoft.com/en-us/dotnet/standard/serialization/system-text-json/use-dom has this sample code:
var forecastObject = new JsonObject
{
["Date"] = new DateTime(2019, 8, 1),
["Temperature"] = 25,
["Summary"] = "Hot",
["DatesAvailable"] = new JsonArray(
new DateTime(2019, 8, 1), new DateTime(2019, 8, 2)),
["TemperatureRanges"] = new JsonObject
{
["Cold"] = new JsonObject
{
["High"] = 20,
["Low"] = -10
}
},
["SummaryWords"] = new JsonArray("Cool", "Windy", "Humid")
};
but it would be nice to write it as something like this:
JsonObject forecastObject =
[
"Date": new DateTime(2019, 8, 1),
"Temperature": 25,
"Summary": "Hot",
"DatesAvailable": [new DateTime(2019, 8, 1), new DateTime(2019, 8, 2)],
"TemperatureRanges":
[
"Cold": ["High": 20, "Low": -10]
],
"SummaryWords": ["Cool", "Windy", "Humid"]
];