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joseluisq/www-url.md

Created July 4, 2019 10:46
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Replace non-www to www string url in Javascript
Raw
www-url.md 
const REGEX_WWW = /^https:\/\/(?!www\.)(.*)$/

"https://domain.com".replace(REGEX_WWW, "https://www.$1")
// "https://www.domain.com"

"https://www.domain.com".replace(REGEX_WWW, "https://www.$1")
// "https://www.domain.com"
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