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# use-default-preference-values
Require providing a second parameter to `get*Pref` methods instead of
using a try/catch block.
## Examples of incorrect code for this rule
```js
try { blah = branch.getCharPref('blah'); } catch(e) {}
```
## Examples of correct code for this rule
```js
blah = branch.getCharPref('blah', true);
```