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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                # generator 生成器 > Generator 的聲明方式類似一般的函數聲明,只是多了個\*號,并且一般可以在函數內看到 yield 關鍵字,已 return 結束當前生成器 ```javascript function* Setting(x) { yield (x += 1); yield (x += 2); yield (x += 3); return (x += 4); } let test = Setting(0); console.log(test.next().value); //0 console.log(test.next().value); //1 console.log(test.next().value); //3 console.log(test.next().value); //6 console.log(test.next().value); //10 console.log(test.next().value); //undefined 已經return 生成器已結束,沒有返回值 因此value也是undefined ``` **這是僅是一個簡單示例,需要用到時,需更深入學習**
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