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fix: typo

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LeviDing 2022-08-07 15:22:40 +08:00 • committed by GitHub
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9-regular-expressions/11-regexp-groups/04-parse-expression/solution.md
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@ -10,8 +10,8 @@ The full regular expression: `pattern:-?\d+(\.\d+)?\s*[-+*/]\s*-?\d+(\.\d+)?`.
It has 3 parts, with `pattern:\s*` between them:
1. `pattern:-?\d+(\.\d+)?` - the first number,
1. `pattern:[-+*/]` - the operator,
1. `pattern:-?\d+(\.\d+)?` - the second number.
2. `pattern:[-+*/]` - the operator,
3. `pattern:-?\d+(\.\d+)?` - the second number.
To make each of these parts a separate element of the result array, let's enclose them in parentheses: `pattern:(-?\d+(\.\d+)?)\s*([-+*/])\s*(-?\d+(\.\d+)?)`.