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fix typo

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Number should be 79031234567 not 79035419441
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Kuthumi Pepple 2020-03-03 23:20:19 +01:00 • committed by GitHub
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9-regular-expressions/02-regexp-character-classes/article.md
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@ -1,6 +1,6 @@
# Character classes
Consider a practical task -- we have a phone number like `"+7(903)-123-45-67"`, and we need to turn it into pure numbers: `79035419441`.
Consider a practical task -- we have a phone number like `"+7(903)-123-45-67"`, and we need to turn it into pure numbers: `79031234567`.
To do so, we can find and remove anything that's not a number. Character classes can help with that.
@ -30,7 +30,7 @@ let regexp = /\d/g;
alert( str.match(regexp) ); // array of matches: 7,9,0,3,1,2,3,4,5,6,7
// let's make the digits-only phone number of them:
alert( str.match(regexp).join('') ); // 79035419441
alert( str.match(regexp).join('') ); // 79031234567
```
That was a character class for digits. There are other character classes as well.