ExpressionJsTranspiler 0.3.0
dotnet add package ExpressionJsTranspiler --version 0.3.0
NuGet\Install-Package ExpressionJsTranspiler -Version 0.3.0
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="ExpressionJsTranspiler" Version="0.3.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
<PackageVersion Include="ExpressionJsTranspiler" Version="0.3.0" />
<PackageReference Include="ExpressionJsTranspiler" />
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.
paket add ExpressionJsTranspiler --version 0.3.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
#r "nuget: ExpressionJsTranspiler, 0.3.0"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
#:package ExpressionJsTranspiler@0.3.0
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.
#addin nuget:?package=ExpressionJsTranspiler&version=0.3.0
#tool nuget:?package=ExpressionJsTranspiler&version=0.3.0
The NuGet Team does not provide support for this client. Please contact its maintainers for support.
ExpressionJsTranspiler
Converts a C# Lambda Expression into a Javascript function, using ExpressionVisitor class
var jsTranspiler = new JsTranspiler(wh => wh.WarehouseId > 1 && wh.WarehouseId < 10);
var js = jsTranspiler.GetJs();
// => function(wh) { return ((wh.WarehouseId > 1) && (wh.WarehouseId < 10)); }
var parameters = jsTranspiler.Parameters;
// => [wh]
var body = jsTranspiler.Body;
// => ((wh.WarehouseId > 1) && (wh.WarehouseId < 10))
Main Use Case
Define a validation rule as a C# lambda expression
Expression<Func<Warehouse, bool>> isValidExpression = wh => wh.Volume > 10;
var jsTranspiler = new JsTranspiler(isValidExpression);
Compile it to be used in the server side
// model
Warehouse warehouse = new Warehouse() {
Name = "Main",
Volume = 20
};
// compile and validate
var isValid = isValidExpression.Compile();
Assert.IsTrue(isValid(warehouse));
Convert lambda expression to Javascript to be used in the client side.
// get Function constructor arguments to pass to client
var jsFunctionCtorArgs = jsTranspiler.GetJsFunctionCtorArgs();
Assert.AreEqual(2, jsFunctionCtorArgs.Count);
Assert.AreEqual("wh", jsFunctionCtorArgs[0]);
Assert.AreEqual("return (wh.Volume > 10);", jsFunctionCtorArgs[1]);
// model
let warehouse = { Name: "Main", Volume: 20 };
// instantiate Function in client side
let isValid = Function.apply(null, jsFunctionCtorArgs);
console.log(isValid(warehouse)); // => true
| Product | Versions Compatible and additional computed target framework versions. |
|---|---|
| .NET | net8.0 is compatible. net8.0-android was computed. net8.0-browser was computed. net8.0-ios was computed. net8.0-maccatalyst was computed. net8.0-macos was computed. net8.0-tvos was computed. net8.0-windows was computed. net9.0 was computed. net9.0-android was computed. net9.0-browser was computed. net9.0-ios was computed. net9.0-maccatalyst was computed. net9.0-macos was computed. net9.0-tvos was computed. net9.0-windows was computed. net10.0 was computed. net10.0-android was computed. net10.0-browser was computed. net10.0-ios was computed. net10.0-maccatalyst was computed. net10.0-macos was computed. net10.0-tvos was computed. net10.0-windows was computed. |
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.
-
net8.0
- No dependencies.
NuGet packages
This package is not used by any NuGet packages.
GitHub repositories
This package is not used by any popular GitHub repositories.