`, { name: 'AJS' });
```
internal
## internal
AJS 内部都在使用的实用工具包
### 示例
**Type Checking**
```javascript
import { is } from 'xajs/internal';
// Array checks
console.log(is.isArray([1, 2, 3])); // true
console.log(is.isArray({})); // false
// Object checks
console.log(is.isObject({})); // true
console.log(is.isObject([])); // false
// Function checks
console.log(is.isFunction(() => {})); // true
console.log(is.isFunction(async () => {})); // true
console.log(is.isFunction(function* () {})); // true
// Boolean checks
console.log(is.isBoolean(true)); // true
console.log(is.isBoolean(1)); // false
```
**Safe Object Operations**
```javascript
import { assign, hasOwnProp } from 'xajs/internal';
// Safe object assignment
const base = { a: 1, b: { c: 2 } };
const extension = { b: { d: 3 }, e: 4 };
const result = assign({}, base, extension);
console.log(result);
// {
// a: 1,
// b: { c: 2, d: 3 },
// e: 4
// }
// Safe property checks
if (hasOwnProp(result, 'b')) {
console.log('Property exists:', result.b);
}
```
**Type-Safe Operations**
```javascript
import { is, assign } from 'xajs/internal';
function safeUpdate(target, source) {
// Type validation
if (!is.isObject(target) || !is.isObject(source)) {
throw new TypeError('Both arguments must be objects');
}
// Safe assignment with type checking
const result = assign({}, target);
for (const key in source) {
if (hasOwnProp(source, key)) {
const value = source[key];
// Type-specific handling
if (is.isArray(value)) {
result[key] = [...value];
} else if (is.isObject(value)) {
result[key] = safeUpdate({}, value);
} else {
result[key] = value;
}
}
}
return result;
}
```
lang
## lang
Javascript 语言特性扩展包
### 示例
**Basic String Operations**
```javascript
import { MagicString } from 'xajs/lang';
const str = MagicString('hello world');
// Chain multiple operations
const result = str.trim().capitalize().replace(/world/, 'AJS');
console.log(result); // 'Hello AJS'
console.log(str); // Original string unchanged
```
**Advanced Pattern Matching**
```javascript
import { MagicString } from 'xajs/lang';
const text = MagicString('user.name.first');
// Replace with callback
const result = text.replace(/\w+/g, (match, index) => {
if (index === 0) return match;
return match.toUpperCase();
});
console.log(result); // 'user.NAME.FIRST'
```
**String Transformation**
```javascript
import { MagicString } from 'xajs/lang';
const template = MagicString('Hello, ${name}!');
// Interpolate values
const greeting = template.replace(
/\${(\w+)}/g,
(_, key) =>
({
name: 'AJS User'
})[key] || ''
);
console.log(greeting); // 'Hello, AJS User!'
```
mobile
## mobile
移动端相关包
### 示例
**Device Detection and Feature Support**
```javascript
import { UserAgent } from 'xajs/mobile';
// Initialize with current user agent
const ua = new UserAgent(navigator.userAgent);
// Comprehensive device check
if (ua.isMobile()) {
// Mobile-specific optimizations
if (ua.isOS('iOS')) {
// iOS specific features
if (parseFloat(ua.getResult().os.version) >= 14.5) {
enableModernIOSFeatures();
} else {
enableLegacyIOSSupport();
}
} else if (ua.isOS('Android')) {
const version = parseFloat(ua.getResult().os.version);
if (version >= 10) {
enableModernAndroidFeatures();
} else {
enableLegacyAndroidSupport();
}
}
} else if (ua.isTablet()) {
// Tablet optimizations
const { device } = ua.getResult();
if (device.vendor === 'Apple' && device.model === 'iPad') {
enableIPadFeatures();
}
} else if (ua.isDesktop()) {
// Desktop optimizations
enableDesktopFeatures();
}
```
**Browser and Engine Detection**
```javascript
import { UserAgent } from 'xajs/mobile';
const ua = new UserAgent(navigator.userAgent);
const { browser, engine } = ua.getResult();
// Comprehensive browser checks
if (ua.isBrowser('Chrome')) {
const version = parseFloat(browser.version);
if (version >= 90) {
// Modern Chrome features
enableProgressiveFeatures();
} else if (version >= 80) {
// Legacy but stable Chrome features
enableBasicFeatures();
} else {
// Very old Chrome
showBrowserUpdateNotice();
}
} else if (ua.isBrowser('Safari')) {
if (parseFloat(browser.version) >= 14) {
if (engine.name === 'Webkit') {
// Modern Safari + Webkit
enableWebkitOptimizations();
}
} else {
// Legacy Safari support
enableLegacySafariSupport();
}
}
```
# 🤝 Contributing
Please read our [Contributing Guide](CONTRIBUTING.md) before submitting a Pull Request to the project.
# 📄 License
This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.
# ✨ Contributors
Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/docs/en/emoji-key)):
| [
Archer (炽宇)](http://xiaoa.name)
[💻](https://github.com/qddegtya/ajs/commits?author=qddegtya "Code") [🚇](#infra-qddegtya "Infrastructure (Hosting, Build-Tools, etc)") [🚧](#maintenance-qddegtya "Maintenance") |
| :---: |
This project follows the [all-contributors](https://github.com/all-contributors/all-contributors) specification. Contributions of any kind welcome!
---
_Source: https://npm.io/package/xajs · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._
