40 lines
457 B
Markdown
40 lines
457 B
Markdown
# Introduction
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This is a demo book.
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## build
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```bash
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gitbook install
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gitbook serve
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# view http://localhost:4000
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```
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## demo
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### demo 1: typescript
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```typescript
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class Polygon {
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constructor(height, width) {
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this.height = height;
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this.width = width;
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}
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get area() {
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return this.height * this.width;
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}
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}
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```
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### demo 2: javascript
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```javascript
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function foo(bar) {
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var a = 42,
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b = "Prism";
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return a + bar(b);
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}
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```
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