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joplin notion extension/Web Development/Go/regex.md

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+regex
+https://gobyexample.com/regular-expressions
+![Go by Example_ Regular Expressions.pdf](../../../_resources/Go%20by%20Example_%20Regular%20Expressions.pdf)
+
+for url
+```go
+func DoesContainURL(str string) (bool, error) {
+	// regex := `/^https?:\/\/(?:www\.)?[-a-zA-Z0-9@:%._\+~#=]{1,256}\.[a-zA-Z0-9()]{1,6}\b(?:[-a-zA-Z0-9()@:%_\+.~#?&\/=]*)$/`
+	regex := `https?://[^\s]+`
+
+	res, err := regexp.MatchString(regex, str)
+
+	fmt.Println("does: ", res)
+
+	return res, err
+}
+
+DoesContainURL("sd http://yourrt.com/122 sads") // true
+
+
+```