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JavaScript - what is \W regex / '\w' and '\W' difference ?
1 answers
3 points
What is \W (/\W/) regex and what is the difference between \w and \W?
1 answer
3 points
\w - /\w/ - matches any word character (shortcut for [a-zA-Z_0-9]).
\W - /\W/ - matches any character that is not a word character (shortcut for [^\w]).
Practical example that shows how to extract \w and \W characters from any string:
xxxxxxxxxx1
const text = 'abc-123?';2
3
const result1 = text.match(/\w/g);4
const result2 = text.match(/\W/g);5
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if (result1) {7
console.log(result1); // ['a', 'b', 'c', 1, 2, 3]8
}9
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if (result2) {11
console.log(result2); // ['-', '?']12
}
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