See perldoc perlop. Use lt, gt, eq, ne, and cmp as appropriate for string comparisons: Binary eq returns true if the left argument is stringwise equal to the right argument. Binary ne returns true if the left argument is stringwise not equal to the right argument. Binary cmp returns -1, 0, or 1 depending on … Read more
[[ is a bash-builtin. Your /bin/bash doesn’t seem to be an actual bash. From a comment: Add #!/bin/bash at the top of file
difflib can do it. Example from the docs: >>> get_close_matches(‘appel’, [‘ape’, ‘apple’, ‘peach’, ‘puppy’]) [‘apple’, ‘ape’] >>> import keyword >>> get_close_matches(‘wheel’, keyword.kwlist) [‘while’] >>> get_close_matches(‘apple’, keyword.kwlist) [] >>> get_close_matches(‘accept’, keyword.kwlist) [‘except’] Check it out. It has other functions that can help you build something custom.
This is not the best practice in .NET framework (4 & +) to check equality String.Compare(x.Username, (string)drUser[“Username”], StringComparison.OrdinalIgnoreCase) == 0 Use the following instead String.Equals(x.Username, (string)drUser[“Username”], StringComparison.OrdinalIgnoreCase) MSDN recommends: Use an overload of the String.Equals method to test whether two strings are equal. Use the String.Compare and String.CompareTo methods to sort strings, not to check … Read more
Yeah, use .match, rather than .search. The result from the .match call will return the actual string that was matched itself, but it can still be used as a boolean value. var string = “Stackoverflow is the BEST”; var result = string.match(/best/i); // result == ‘BEST’; if (result){ alert(‘Matched’); } Using a regular expression like … Read more
The good news is that if you need to make a case-sensitive query, it is very easy to do: SELECT * FROM `table` WHERE BINARY `column` = ‘value’
Quite simple actually: SELECT * FROM `table` WHERE `column` LIKE ‘%{$needle}%’ The % is a wildcard for any characters set (none, one or many). Do note that this can get slow on very large datasets so if your database grows you’ll need to use fulltext indices.
Use packaging.version.parse. >>> # pip install packaging >>> from packaging import version >>> version.parse(“2.3.1”) < version.parse(“10.1.2”) True >>> version.parse(“1.3.a4”) < version.parse(“10.1.2”) True >>> isinstance(version.parse(“1.3.a4”), version.Version) True >>> isinstance(version.parse(“1.3.xy123”), version.LegacyVersion) True >>> version.Version(“1.3.xy123”) Traceback (most recent call last): … packaging.version.InvalidVersion: Invalid version: ‘1.3.xy123’ packaging.version.parse is a third-party utility but is used by setuptools (so you probably … Read more
I was presented with this problem about a year ago when it came to looking up user entered information about a oil rig in a database of miscellaneous information. The goal was to do some sort of fuzzy string search that could identify the database entry with the most common elements. Part of the research … Read more
aString = “hello world” aString.startswith(“hello”) More info about startswith.