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Watcher: Error catching fixed #1573

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Merged
merged 3 commits into from
Feb 21, 2022
Merged

Watcher: Error catching fixed #1573

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6b1a301
Watcher: Error catching fixed
Feb 21, 2022
2613f20
Vue SFC Playground link updated
Feb 21, 2022
37ec79a
Playground: API URL in options API fixed
Feb 21, 2022
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8 changes: 4 additions & 4 deletions src/guide/essentials/watchers.md
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Original file line number Diff line number Diff line change
Expand Up @@ -30,7 +30,7 @@ export default {
try {
const res = await fetch('https://yesno.wtf/api')
this.answer = (await res.json()).answer
} catch (e) {
} catch (error) {
this.answer = 'Error! Could not reach the API. ' + error
}
}
Expand All @@ -46,7 +46,7 @@ export default {
<p>{{ answer }}</p>
```

[Try it in the Playground](https://sfc.vuejs.org/#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)
[Try it in the Playground](https://sfc.vuejs.org/#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)

The `watch` option also supports a dot-delimited path as the key:

Expand Down Expand Up @@ -81,7 +81,7 @@ watch(question, async (newQuestion, oldQuestion) => {
try {
const res = await fetch('https://yesno.wtf/api')
answer.value = (await res.json()).answer
} catch (e) {
} catch (error) {
answer.value = 'Error! Could not reach the API. ' + error
}
}
Expand All @@ -97,7 +97,7 @@ watch(question, async (newQuestion, oldQuestion) => {
</template>
```

[Try it in the Playground](https://sfc.vuejs.org/#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)
[Try it in the Playground](https://sfc.vuejs.org/#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)

### Watch Source Types

Expand Down