forked from sheetjs/docs.sheetjs.com
V8 C# demo
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<Cell ss:StyleID="s16"><Data ss:Type="String">✔</Data></Cell>
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<Cell ss:StyleID="s16"><Data ss:Type="String">✔</Data></Cell>
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</Row>
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<Row>
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<Cell ss:StyleID="s20" ss:HRef="/docs/demos/engines/v8#c"><Data ss:Type="String">V8</Data></Cell>
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<Cell><Data ss:Type="String">C#</Data></Cell>
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<Cell ss:StyleID="s16"><Data ss:Type="String">✔</Data></Cell>
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<Cell ss:StyleID="s16"><Data ss:Type="String">✔</Data></Cell>
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<Cell ss:StyleID="s16"><Data ss:Type="String">✔</Data></Cell>
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<Cell ss:StyleID="s16"><Data ss:Type="String">✔</Data></Cell>
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<Cell ss:StyleID="s16"><Data ss:Type="String">✔</Data></Cell>
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<Cell ss:StyleID="s16"><Data ss:Type="String">✔</Data></Cell>
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</Row>
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<Row>
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<Cell ss:StyleID="s20" ss:HRef="/docs/demos/engines/jsc#swift"><Data ss:Type="String">JSC</Data></Cell>
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<Cell><Data ss:Type="String">Swift</Data></Cell>
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@ -1123,6 +1123,165 @@ java -cp ".;javet-3.1.3.jar" SheetJSJavet pres.xlsx
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If the program succeeded, the CSV contents will be printed to console.
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### C#
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ClearScript provides a .NET interface to the V8 engine.
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C# byte arrays (`byte[]`) must be explicitly converted to arrays of bytes:
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```csharp
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/* read data into a byte array */
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byte[] filedata = File.ReadAllBytes("pres.numbers");
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// highlight-start
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/* generate a JS Array (variable name `buf`) from the data */
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engine.Script.buf = engine.Script.Array.from(filedata);
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// highlight-end
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/* parse data */
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engine.Evaluate("var wb = XLSX.read(buf, {type: 'array'});");
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```
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:::note Tested Deployments
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This demo was last tested in the following deployments:
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| Architecture | V8 Version | Date |
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|:-------------|:--------------|:-----------|
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| `darwin-x64` | `12.3.219.12` | 2024-07-16 |
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| `darwin-arm` | `12.3.219.12` | 2024-07-16 |
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| `win10-x64` | `12.3.219.12` | 2024-07-16 |
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| `win11-arm` | `12.3.219.12` | 2024-07-16 |
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| `linux-x64` | `12.3.219.12` | 2024-07-16 |
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| `linux-arm` | `12.3.219.12` | 2024-07-16 |
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:::
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0) Set the `DOTNET_CLI_TELEMETRY_OPTOUT` environment variable to `1`.
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<details open>
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<summary><b>How to disable telemetry</b> (click to hide)</summary>
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<Tabs groupId="os">
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<TabItem value="unix" label="Linux/MacOS">
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Add the following line to `.profile`, `.bashrc` and `.zshrc`:
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```bash title="(add to .profile , .bashrc , and .zshrc)"
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export DOTNET_CLI_TELEMETRY_OPTOUT=1
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```
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Close and restart the Terminal to load the changes.
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</TabItem>
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<TabItem value="win" label="Windows">
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Type `env` in the search bar and select "Edit the system environment variables".
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In the new window, click the "Environment Variables..." button.
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In the new window, look for the "System variables" section and click "New..."
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Set the "Variable name" to `DOTNET_CLI_TELEMETRY_OPTOUT` and the value to `1`.
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Click "OK" in each window (3 windows) and restart your computer.
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</TabItem>
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</Tabs>
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</details>
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1) Install .NET
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<details>
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<summary><b>Installation Notes</b> (click to show)</summary>
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For macOS x64 and ARM64, install the `dotnet-sdk` Cask with Homebrew:
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```bash
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brew install --cask dotnet-sdk
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```
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For Steam Deck Holo and other Arch Linux x64 distributions, the `dotnet-sdk` and
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`dotnet-runtime` packages should be installed using `pacman`:
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```bash
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sudo pacman -Syu dotnet-sdk dotnet-runtime
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```
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https://dotnet.microsoft.com/en-us/download/dotnet/6.0 is the official source
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for Windows and ARM64 Linux versions.
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</details>
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2) Open a new Terminal window in macOS or PowerShell window in Windows.
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3) Create a new project:
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```bash
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mkdir SheetJSClearScript
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cd SheetJSClearScript
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dotnet new console
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dotnet run
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```
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4) Add ClearScript to the project:
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```bash
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dotnet add package Microsoft.ClearScript.Complete --version 7.4.5
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```
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5) Download the SheetJS standalone script and test file. Move all three files to
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the project directory:
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<ul>
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<li><a href={`https://cdn.sheetjs.com/xlsx-${current}/package/dist/xlsx.full.min.js`}>xlsx.full.min.js</a></li>
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<li><a href="https://docs.sheetjs.com/pres.xlsx">pres.xlsx</a></li>
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</ul>
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<CodeBlock language="bash">{`\
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curl -LO https://cdn.sheetjs.com/xlsx-${current}/package/dist/xlsx.full.min.js
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curl -LO https://docs.sheetjs.com/pres.xlsx`}
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</CodeBlock>
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6) Replace `Program.cs` with the following:
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```csharp title="Program.cs"
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using Microsoft.ClearScript.JavaScript;
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using Microsoft.ClearScript.V8;
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/* initialize ClearScript */
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var engine = new V8ScriptEngine();
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/* Load SheetJS Scripts */
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engine.Evaluate(File.ReadAllText("xlsx.full.min.js"));
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Console.WriteLine("SheetJS version {0}", engine.Evaluate("XLSX.version"));
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/* Read and Parse File */
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byte[] filedata = File.ReadAllBytes(args[0]);
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engine.Script.buf = engine.Script.Array.from(filedata);
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engine.Evaluate("var wb = XLSX.read(buf, {type: 'array'});");
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/* Print CSV of first worksheet */
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engine.Evaluate("var ws = wb.Sheets[wb.SheetNames[0]];");
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var csv = engine.Evaluate("XLSX.utils.sheet_to_csv(ws)");
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Console.Write(csv);
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/* Generate XLSB file and save to SheetJSJint.xlsb */
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var xlsb = (ITypedArray<byte>)engine.Evaluate("XLSX.write(wb, {bookType: 'xlsb', type: 'buffer'})");
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File.WriteAllBytes("SheetJSClearScript.xlsb", xlsb.ToArray());
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```
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After saving, run the program and pass the test file name as an argument:
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```bash
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dotnet run pres.xlsx
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```
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If successful, the program will print the contents of the first sheet as CSV
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rows. It will also create `SheetJSClearScript.xlsb`, a workbook that can be
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opened in a spreadsheet editor.
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## Snapshots
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At a high level, V8 snapshots are raw dumps of the V8 engine state. It is much
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@ -1,5 +1,8 @@
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{
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"private": true,
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"scripts": {
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"dev": "cd docz && npm run start -- --host=0.0.0.0 --no-open"
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},
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"alex": {
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"allow": [
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"host-hostess",
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