Match a Single Character ( . ) (?)
You can match any single character with a dot (.). A dot means there must be a character in the string.
You can make a single character optional by placing a question mark (?) after it.
| Regular Expression | Match | Not a Match |
|---|---|---|
| .t | at, xt | ax, xx |
| m.x | mix | mx, miix |
| mi?x | mix, mx | miix |
| m.?x | mix, max, mx | miix, maax |
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