File: UnicodeInCode.md

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Using non-ASCII Unicode characters in code can be confusing, and potentially
unsafe.

For example, homoglyphs can result in a different method to the one that was
expected being invoked.

```java
import static com.google.common.base.Objects.equal;

public void isAuthenticated(String password) {
  // The "l" here is not what it seems.
  return equaⅼ(password, this.password());
}

// ...

private boolean equaⅼ(String a, String b) {
  return true;
}
```