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The first part of the above regex expression uses an ^ to start the string. A Regular Expression - or regex for short- is a syntax that allows you to match strings with specific patterns. Start at the Back of the Line and then Move Backward to Grab Anything One or More Times Until Hitting a Space Back To Top Start at the Beginning of the Line, Ignore Everything until a Space is Found and Then Capture Anything After That Until the End of the Line. but this doesn't work when there are more than two chars, but maybe I wasn't clear that this was possible as well. matches between one and infinity times, but it does it as few times as possible, using lazy expansion, (?=-) Is a positive look ahead, so it checks ahead in the string, and only matches and returns if the next character in the string is - but the return will not include the value -. \W isn't included, so that other characters can appear before or after any of the variants of. Improve this question. It prevents the regex from matching characters before or after the phrase. These flags are always appended after the last forward slash in a regex definition. It's not wise to use JavaScript to test regular expressions of any other flavor A few less lines.. string resultString = "my-string".Split('-')[0]; Regular Expression to get all characters before "-", http://msdn.microsoft.com/en-US/library/ms228388%28v=VS.80%29.aspx, How Intuit democratizes AI development across teams through reusability. Must feel like helping a monkey to order bananas online. Yes, but not by keeping the regular expression as-is. How can I get the string before the character "-" using regular expressions? There are a few tools available to users who want to verify and test their regex syntax. Butsecondstep fails: The characters ally or self or enemy are not found in the value starting from the second character to the end of the string. Explanation: ^ Start of line/string ( Start capturing group .*. I expect that he will be able to solve the last part. It prevents the regex from matching characters before or after the number. How to react to a students panic attack in an oral exam? find all text before using regex - Stack Overflow \s matches a space, and {0,1} indicates that a space can occur zero or one times.