Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more. Except in perl and GNU tools, you'd still have potential issues for lines that contain NUL characters (0x0 byte). W3Schools offers free online tutorials, references and exercises in all the major languages of the web. '\r' (ASCII 13 (0x0D)), a carriage return. ' ' (ASCII 10 (0x0A)), a new line (line feed). That would have all 4 solutions consider that line above contains 122 characters. Without the second parameter, trim () will strip these characters: ' ' (ASCII 32 (0x20)), an ordinary space. If you want to count in terms of bytes, fix the locale to C with LC_ALL=C grep/awk/sed. ![]() ), would have a length of 30 1 30 1 2*30=122 with perl or mawk, 3*30=90 with gawk. Technical Details More Examples Example Remove whitespaces from both sides of a string: | Boolean Filter Version (mbaer3000)| 94162.3 Ops/sec | Except for the perl one (or for awk / grep / sed implementations (like mawk or busybox) that don't support multi-byte characters), that counts the length in terms of number of characters (according to the LCCTYPE setting of the locale) instead of bytes. Solved Trim specific character from a string 9to5Answer Solution 1 One line is enough: var x 'foo' var y x.replace(/\ \ /g, '') document.write(x '' y) beginning of the string \ pipe, one or more time. ![]() | Index Version (Jason Larke) | 949979.7 Ops/sec | This helper also includes a third parameter so you change the ending on the trimmed string. In this situation seven characters: value strlimit ('This string is really really long.', 7) // This st. Like this: string substr (string, 0, 340) string substr (string, 0, strrpos (string, ' ')). The first parameter is your string and the second is the length you want to trim it too. Finally, it does a right trim and the Multi-Byte mbstrimwidth to truncate the string to a specific length. ![]() Some interesting and unexpected results running under Chrome. It seems like you would want to first trim the text down to 340 characters exactly, then find the location of the last ' ' in the string and trim down to that amount. The first if checks to see if the string is less than the limit using the Multi-Byte mbstrwidth PHP function. Update: Was curious around the performance of different solutions and so I've updated a basic benchmark here: ![]() To do this, MightyPork suggests to replace the ifs with the following line of code: c = c.replace(/]/g, '\\$
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