[Bug] The battery's isSupported is broken.

[Jesse205]

Describe the bug

Using only xxx in xxx to determine support can be problematic.

I am using a new version of Microsoft Edge and my computer is a battery free computer.

To fix this, just add typeof navigator.getBattery === 'function'

Reproduction

https://stackblitz.com/edit/vitejs-vite-tuyecr?file=src%2FApp.vue

System Info

System:
    OS: Windows 10 10.0.19045
    CPU: (4) x64 Intel(R) Core(TM) i3-4170 CPU @ 3.70GHz
    Memory: 407.99 MB / 11.87 GB
  Binaries:
    Node: 21.2.0 - D:\Program Files\nodejs\node.EXE
    Yarn: 1.22.21 - ~\AppData\Roaming\npm\yarn.CMD
    npm: 10.2.3 - D:\Program Files\nodejs\npm.CMD
    pnpm: 8.11.0 - ~\AppData\Roaming\npm\pnpm.CMD
  Browsers:
    Edge: Chromium (120.0.2210.77)
    Internet Explorer: 11.0.19041.3636

Used Package Manager

yarn

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Make sure this is a VueUse issue and not a framework-specific issue. For example, if it's a Vue SFC related bug, it should likely be reported to https://github.com/vuejs/core instead.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion.
• The provided reproduction is a minimal reproducible example of the bug.

[Jesse205]

Already exists pr #3634

[Jesse205]

I looked at other functions and it didn't added typeof either. Perhaps other functions also have this kind of bug?

[Doctor-wu]

Already exists pr #3634

Hi @Jesse205 , That PR appears to be not active, welcome to commit a new one :)

[Doctor-wu]

Already exists pr #3634

Hi @Jesse205 , That PR appears to be not active, welcome to commit a new one :)

That author just replied, ignore this🥹

[Jesse205]

I found that delete navigator.getBattery can resets the getBattery function. And the problem is not reproduced in other browsers. I think it might be some extension I installed that makes navigator.getBattery undefined or only http://xxx cannot use navigator.getBattery.

Browers:

• Chrome: v120.0.6099.130, no extensions
• Cent Browser: v5.0.1002.354 (official release) (32-bit) (Chromium 102.0.5005.167), only Tampermonkey, no scripts
• Edge: v120.0.2210.91 (official version) (64-bit), very many extensions

Chrome(https://cn.bing.com/chrome/newtab):

Chrome(http://192.168.56.1:5173/):

Cent Browser(https://hao.centbrowser.cn/):

Cent Browser(http://192.168.56.1:5173/):

Edge(http://192.168.56.1:5173/):

Edge(https://www.hao123.com/):