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[js] 第300天 axios为什么能在浏览器中环境运行又能在node中环境运行？ #1882

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haizhilin2013 opened this issue Feb 9, 2020 · 2 comments
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[js] 第300天 axios为什么能在浏览器中环境运行又能在node中环境运行？ #1882

haizhilin2013 opened this issue Feb 9, 2020 · 2 comments
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@haizhilin2013
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第300天 axios为什么能在浏览器中环境运行又能在node中环境运行？

我也要出题
@haizhilin2013 haizhilin2013 added the js JavaScript label Feb 9, 2020
@sayid760
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源码中defaults.js文件里有getDefaultAdapter这个方法，用来判断环境。如果是浏览器就实例new XMLHttpRequest()来发送请求响应服务，node环境就引用http和https库处理和响应http服务。

@hyj443
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hyj443 commented Oct 21, 2021

axios的getDefaultAdapter函数可以判断当前环境，浏览器环境会require一个js文件，node环境会require另一个js文件，前者是用promise管控的xhr一套流程，后者是用node的http库发起http请求。

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@haizhilin2013 @sayid760 @hyj443