浏览器不输出

运行代码, 发现没有得到数字1, 只得到了 undefined

console.log(1);

1. Open DevTools by pressing F12 or ctrl + shift + i
2. press F1 or click on … on the top right corner beside cross to open settings
3. scroll at the bottom or to the right of screen and press [restore defaults and reload] button
4. Restart chrome
   NOTE: relaunch chrome is very much necessary

   找到设置, 点 restore defaults and reload
   注意此方法会清空所有的 Script Snippet

再次尝试, 成功得到了1

参考:

• https://stackoverflow.com/questions/79047648/why-console-log-on-chrome-console-display-undefined-and-does-not-print-out-value
• https://stackoverflow.com/questions/21911066/how-to-reset-chrome-inspector