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Improvements to javascript and build process #5

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d3058dc
Improvements to javascript and build process
paustint Jan 8, 2023
8d97d87
Add ldflags to go build
paustint Jan 8, 2023
7c0a5e6
Merge branch 'main' into paustint/misc-fixes
xuri Mar 9, 2023
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5 changes: 5 additions & 0 deletions .prettierrc
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Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
{
"printWidth": 120,
"singleQuote": false,
"trailingComma": "all"
}
168 changes: 89 additions & 79 deletions README.md
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Expand Up @@ -16,33 +16,33 @@ Excelize-wasm is a pure WebAssembly / Javascript port of Go [Excelize](https://g

## Environment Compatibility

Browser | Version
---|---
Chrome | ≥57
Chrome for Android and Android Browser | ≥105
Edge | ≥16
Safari on macOS and iOS | ≥11
Firefox | ≥52
Firefox for Android | ≥104
Opera | ≥44
Opera Mobile | ≥64
Samsung Internet | ≥7.2
UC Browser for Android | ≥13.4
QQ Browser | ≥10.4
Node.js | ≥8.0.0
Deno | ≥1.0
| Browser | Version |
| -------------------------------------- | ---------- |
| Chrome | ≥71 |
| Chrome for Android and Android Browser | ≥108 |
| Edge | ≥79 |
| Safari on macOS and iOS | ≥12.2 |
| Firefox | ≥65 |
| Firefox for Android | ≥65 |
| Opera | ≥58 |
| Opera Mobile | ≥50 |
| Samsung Internet | ≥10.1 |
| UC Browser for Android | ≥13.4 |
| QQ Browser | ≥13.1 |
| Node.js | ≥12.0.0 |
| Deno | ≥1.0 |

## Basic Usage

### Installation

#### Node.js
#### Node.js or browser

```bash
npm install --save excelize-wasm
```

#### Browser
#### Browser using script tag

```html
<script src="excelize-wasm/index.js"></script>
Expand All @@ -59,17 +59,17 @@ const fs = require("fs");
init("./node_modules/excelize-wasm/excelize.wasm.gz").then((excelize) => {
const f = excelize.NewFile();
// Create a new sheet.
const { index } = f.NewSheet("Sheet2")
const { index } = f.NewSheet("Sheet2");
// Set value of a cell.
f.SetCellValue("Sheet2", "A2", "Hello world.")
f.SetCellValue("Sheet1", "B2", 100)
f.SetCellValue("Sheet2", "A2", "Hello world.");
f.SetCellValue("Sheet1", "B2", 100);
// Set active sheet of the workbook.
f.SetActiveSheet(index)
f.SetActiveSheet(index);
// Save spreadsheet by the given path.
const { buffer, error } = f.WriteToBuffer();
if (error) {
console.log(error);
return
return;
}
fs.writeFile("Book1.xlsx", buffer, "binary", (error) => {
if (error) {
Expand All @@ -86,42 +86,42 @@ Create spreadsheet in browser:

```html
<html>
<head>
<meta charset="utf-8">
<script src="https://<your_hostname>/excelize-wasm/index.js"></script>
</head>
<body>
<div>
<button onclick="download()">Download</button>
</div>
<script>
function download() {
excelizeWASM.init("https://<your_hostname>/excelize-wasm/excelize.wasm.gz").then((excelize) => {
const f = excelize.NewFile();
// Create a new sheet.
const { index } = f.NewSheet("Sheet2")
// Set value of a cell.
f.SetCellValue("Sheet2", "A2", "Hello world.")
f.SetCellValue("Sheet1", "B2", 100)
// Set active sheet of the workbook.
f.SetActiveSheet(index)
// Save spreadsheet by the given path.
const { buffer, error } = f.WriteToBuffer();
if (error) {
console.log(error);
return
<head>
<meta charset="utf-8" />
<script src="https://<your_hostname>/excelize-wasm/index.js"></script>
</head>
<body>
<div>
<button onclick="download()">Download</button>
</div>
<script>
function download() {
excelizeWASM.init("https://<your_hostname>/excelize-wasm/excelize.wasm.gz").then((excelize) => {
const f = excelize.NewFile();
// Create a new sheet.
const { index } = f.NewSheet("Sheet2");
// Set value of a cell.
f.SetCellValue("Sheet2", "A2", "Hello world.");
f.SetCellValue("Sheet1", "B2", 100);
// Set active sheet of the workbook.
f.SetActiveSheet(index);
// Save spreadsheet by the given path.
const { buffer, error } = f.WriteToBuffer();
if (error) {
console.log(error);
return;
}
const link = document.createElement("a");
link.download = "Book1.xlsx";
link.href = URL.createObjectURL(
new Blob([buffer], { type: "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" }),
);
link.click();
});
}
const link = document.createElement("a");
link.download = "Book1.xlsx";
link.href = URL.createObjectURL(
new Blob([buffer],
{ type: "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" })
);
link.click();
});
}
</script>
</body>
</script>
</body>
</html>
```

</details>
Expand All @@ -137,22 +137,22 @@ const fs = require("fs");
init("./node_modules/excelize-wasm/excelize.wasm.gz").then((excelize) => {
const f = excelize.OpenReader(fs.readFileSync("Book1.xlsx"));
// Set value of a cell.
var { value, error } = f.GetCellValue("Sheet1", "B2")
var { value, error } = f.GetCellValue("Sheet1", "B2");
if (error) {
console.log(error);
return;
}
console.log(value)
console.log(value);
// Get all the rows in the Sheet1.
var { result, error } = f.GetRows("Sheet1");
if (error) {
console.log(error);
return;
}
result.forEach(row => {
row.forEach(colCell => {
process.stdout.write(`${colCell}\t`)
})
result.forEach((row) => {
row.forEach((colCell) => {
process.stdout.write(`${colCell}\t`);
});
console.log();
});
});
Expand Down Expand Up @@ -238,40 +238,40 @@ init("./node_modules/excelize-wasm/excelize.wasm.gz").then((excelize) => {
const f = excelize.OpenReader(fs.readFileSync("Book1.xlsx"));
if (f.error) {
console.log(f.error);
return
return;
}
// Insert a picture.
var { error } = f.AddPictureFromBytes("Sheet1", "A2",
"Picture 1", ".png", fs.readFileSync("image.png"), {})
var { error } = f.AddPictureFromBytes("Sheet1", "A2", "Picture 1", ".png", fs.readFileSync("image.png"), {});
if (error) {
console.log(error);
return
return;
}
// Insert a picture to worksheet with scaling.
var { error } = f.AddPictureFromBytes("Sheet1", "D2", "Picture 2", ".png",
fs.readFileSync("image.jpg"), {ScaleX: 0.5, ScaleY: 0.5});
var { error } = f.AddPictureFromBytes("Sheet1", "D2", "Picture 2", ".png", fs.readFileSync("image.jpg"), {
ScaleX: 0.5,
ScaleY: 0.5,
});
if (error) {
console.log(error);
return
return;
}
// Insert a picture offset in the cell with printing support.
var { error } = f.AddPictureFromBytes("Sheet1", "H2", "Picture 3", ".png",
fs.readFileSync("image.gif"), {
OffsetX: 15,
OffsetY: 10,
PrintObject: true,
LockAspectRatio: false,
Locked: false
var { error } = f.AddPictureFromBytes("Sheet1", "H2", "Picture 3", ".png", fs.readFileSync("image.gif"), {
OffsetX: 15,
OffsetY: 10,
PrintObject: true,
LockAspectRatio: false,
Locked: false,
});
if (error) {
console.log(error);
return
return;
}
// Save spreadsheet by the given path.
var { buffer, error } = f.WriteToBuffer();
if (error) {
console.log(error);
return
return;
}
fs.writeFile("Book1.xlsx", buffer, "binary", (error) => {
if (error) {
Expand All @@ -285,6 +285,16 @@ init("./node_modules/excelize-wasm/excelize.wasm.gz").then((excelize) => {

Contributions are welcome! Open a pull request to fix a bug, or open an issue to discuss a new feature or change.

### Build locally

Ensure you have node and go installed.

Install all dependencies with `npm install` and build with `npm run build`. This will compile the javascript to three different build targets and will build and generate the wasm gzip file.

To build just the JS, you can run `npm run build:js`

Run tests by running `npm run test`

## Licenses

This program is under the terms of the BSD 3-Clause License. See [https://opensource.org/licenses/BSD-3-Clause](https://opensource.org/licenses/BSD-3-Clause).
Expand Down
20 changes: 17 additions & 3 deletions package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -17,12 +17,22 @@
"script": "./dist/index.js",
"default": "./dist/main.js"
},
"scripts": {
"build": "npm-run-all clean build:js build:go",
"build:js": "rollup -c",
"build:go": "cd cmd && GOOS=js GOARCH=wasm go build -ldflags=\"-s -w\" -o ../dist/excelize.wasm && cd ../dist && gzip -9 -v -c excelize.wasm > excelize.wasm.gz && rm excelize.wasm",
"clean": "rm -rf dist",
"test": "node test/test-nodejs.js"
},
Comment on lines +20 to +26
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Any of these scripts can be executed by running npm run x - e.x. npm run build.
npm-run-all is a library that allows running multiple npm commands without having to chain them together.

gzip -9 -v -c excelize.wasm > excelize.wasm.gz && rm excelize.wasm is probably not cross-platform compatible, likely won't work on Windows.

"files": [
"excelize.wasm.gz",
"index.d.ts",
"index.js",
"index.js.map",
"main.cjs",
"main.js"
"main.cjs.map",
"main.js",
"main.js.map"
],
"types": "index.d.ts",
"typings": "index.d.ts",
Expand Down Expand Up @@ -71,7 +81,11 @@
"@rollup/plugin-node-resolve": "15.0.1",
"@rollup/plugin-terser": "0.2.1",
"pako": "2.1.0",
"rollup-plugin-polyfill-node": "0.11.0",
"rollup": "3.8.0"
"rollup": "3.8.0",
"rollup-plugin-polyfill-node": "0.11.0"
},
"dependencies": {
"npm-run-all": "^4.1.5",
"rollup-plugin-dts": "^5.1.1"
}
}
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