小编Shu*_*ode的帖子

当用户点击ion-back-button时，我想停止从一个页面导航到另一个页面。我有一些验证/检查要执行，具体取决于哪个应用程序将决定是否允许后退操作。

我正在尝试用Expo创建反应原生应用程序.根据本机官方文档的反应,我在我的Windows系统上安装了Node 8+(v8.12.0)和expo-cli,然后运行命令expo init AwesomeProject.但它给出的错误是

(0 , (_wordwrap || _load_wordwrap(...)).default)(...)(...).trimStart is not a function
Set EXPO_DEBUG=true in your env to view the stack trace.

当我启用expo debug时,它给出了

TypeError: (0 , (_wordwrap || _load_wordwrap(...)).default)(...)(...).trimStart
is not a function
    at C:\expo-cli@2.11.6\src\commands\init.js:105:19
    at Array.map (<anonymous>)
    at _callee$ (C:\expo-cli@2.11.6\src\commands\init.js:95:37)
    at tryCatch (C:\Users\shubhamt1\AppData\Roaming\npm\node_modules\expo-cli\no
de_modules\regenerator-runtime\runtime.js:62:40)
    at Generator.invoke [as _invoke] (C:\Users\shubhamt1\AppData\Roaming\npm\nod
e_modules\expo-cli\node_modules\regenerator-runtime\runtime.js:296:22)
    at Generator.prototype.(anonymous function) [as next] (C:\Users\shubhamt1\Ap
pData\Roaming\npm\node_modules\expo-cli\node_modules\regenerator-runtime\runtime
.js:114:21)
    at step (C:\Users\shubhamt1\AppData\Roaming\npm\node_modules\expo-cli\node_m
odules\babel-runtime\helpers\asyncToGenerator.js:17:30)
    at C:\Users\shubhamt1\AppData\Roaming\npm\node_modules\expo-cli\node_modules
\babel-runtime\helpers\asyncToGenerator.js:35:14
    at new Promise (<anonymous>)
    at new F (C:\Users\shubhamt1\AppData\Roaming\npm\node_modules\expo-cli\node_ …