string-length

Is there a function around somewhere that I can use to predict the space that sprintf( ) will need? IOW, can I call a function size_t predict_space( "%s\n", some_string ) that will return the length of the C-string that will result from sprintf( "%s\n", some_string )? In C99 snprintf (note: Windows and SUSv2, do not provide an implementation of snprintf (or _snprintf) conforming to the Standard) : 7.19.6.5 The snprintf function Synopsis [#1] #include <stdio.h> int snprintf(char * restrict s, size_t n, const char * restrict format, ...); Description [#2] The snprintf function is equivalent to

This question already has an answer here: ToLocaleDateString() changes in IE11 5 answers I've ran into a possible bug with IE where calling the JavaScript . length function returns a value that is off by 1 if/when the string was derived from .toLocaleString() . var d = new Date(); var locale = navigator.language; var month = d.toLocaleString(locale, { month: "long"}); // month.length will return the length of the month string +1 //(eg: if month = "March", month.length will return 6.) Interestingly, the code example of above will return true (in IE) for the following: (month[0] should be "M")

In a string in objective-c if I say something like [myStr length]; it returns a number which is the number of bytes but what can I use to return the number of characters in a string. For example: a string with the letter "a" in it returns a length of 1 a string with a single emoji in it returns a length of 2 (or even a length of 4 sometimes) this is because that is the number of bytes in the string... I just need the number of characters. I just whipped up this method. Add it to an NSString category. - (NSUInteger)characterCount { NSUInteger cnt = 0; NSUInteger index = 0; while (index < self

I need to implement a DNA class which has attribute a sequence which consists of a string of characters from the alphabet ('A,C,G,T') and I need to overload some operators like less than,greater than,etc.. here is my code: class DNA: def __init__(self,sequence): self.seq=sequence def __lt__(self,other): return (self.seq<other) def __le__(self,other): return(self.seq<=other) def __gt__(self,other): return(self.seq>other) def __ge__(self,other): return(len(self.seq)>=len(other)) def __eq__(self,other): return (len(self.seq)==len(other)) def __ne__(self,other): return not(self.__eq__(self,other))

I would like to ask how I can get the length of digits in an Integer. For example: $num = 245354; $numlength = mb_strlen($num); $numlength should be 6 in this example. Somehow I can't manage it to work? Thanks EDIT: The example code above --^ and its respective method mb_strlen(); works just fine. Maybe: $num = 245354; $numlength = strlen((string)$num); Some math sometime helps. Everything you need is to invoke floor(log10($num) + 1) with check for 0. $num = 12357; echo $num !== 0 ? floor(log10($num) + 1) : 1; Basically it does the logarithm with base 10 then makes floor of it and adds 1. More

I have an array like this $data = array( "163", "630", "43", "924", "4", "54" ); How can I select the smallest and largest values from it according to string length NOT number value. (for this example it is 1 (smallest) and 3 (largest) . Peter Ajtai Seems like you should use an array_map() // Convert array to an array of string lengths $lengths = array_map('strlen', $data); // Show min and max string length echo "The shortest is " . min($lengths) . ". The longest is " . max($lengths); Note that the $lengths array is unsorted, so you can easily retrieve the corresponding number for each string

How do you get the length of a string in jQuery? You don't need jquery, just use yourstring.length . See reference here and also here . Update : To support unicode strings, length need to be computed as following: [..."𠮷"].length or create an auxiliary function function uniLen(s) { return [...s].length } Andrei Iarus The easiest way: $('#selector').val().length jQuery is a JavaScript library. You don't need to use jQuery to get the length of a string because it is a basic JavaScript string object property. somestring.length; Joedel HTML <div class="selector">Text mates</div> SCRIPT alert