The expression is then followed by an sign. Group 1 (+) - In this section of the expression, we match one or more lowercase letters between a-z, numbers between 0-9, underscores, periods, and hyphens.Then the expression is broken into three separate groups.
first part of the above regex expression uses an ^ to start the string. The following regex snippet will match a commonly formatted email address. To match a particular email address with regex we need to utilize various tokens. The following section contains a couple of examples that show how you can use regex to match a given string. However, you may still be a little confused as to how to put these tokens together to create an expression for a particular purpose. With the regex cheat sheet above, you can dissect and verify what each token within a regex expression actually does.
Word Boundary (usually a position between /w and /W)
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