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Split string on the first white space occurrence

...lit(/\s(?=\S+$)/).reverse().map(reverse) or maybe re = /^\S+\s|.*/g; [].concat.call(re.exec(str), re.exec(str)) 2019 update: as of ES2018, lookbehinds are supported: str = "72 tocirah sneab" s = str.split(/(?<=^\S+)\s/) console.log(s) ...
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How to get the type of a variable in MATLAB?

...gt; a = 'Hi' a = Hi >> class(b) ans = double >> class(a) ans = char share | improve this answer | follow | ...
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Passing variable arguments to another function that accepts a variable argument list

...#include <stdio.h> template<typename... Args> void test(const char * f, Args... args) { printf(f, args...); } int main() { int a = 2; test("%s\n", "test"); test("%s %d %d %p\n", "second test", 2, a, &a); } At the very least, it works with g++. ...
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Generate list of all possible permutations of a string

...generating a list of all possible permutations of a string between x and y characters in length, containing a variable list of characters. ...
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How do I use valgrind to find memory leaks?

...ok at the C code I wrote too: #include <stdlib.h> int main() { char* string = malloc(5 * sizeof(char)); //LEAK: not freed! return 0; } Well, there were 5 bytes lost. How did it happen? The error report just says main and malloc. In a larger program, that would be seriously trouble...
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Replacing column values in a pandas DataFrame

...'] could be 'male', 'female' or 'neutral', do something like this: w = pd.concat([w, pd.get_dummies(w['female'], drop_first = True)], axis = 1]) w.drop('female', axis = 1, inplace = True) Then you are left with two new columns giving you the dummy coding of 'female' and you got rid of the column ...
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Drop all duplicate rows across multiple columns in Python Pandas

... much clearer, therefore: In [352]: DG=df.groupby(['A', 'C']) print pd.concat([DG.get_group(item) for item, value in DG.groups.items() if len(value)==1]) A B C 2 foo 1 B 3 bar 1 A [2 rows x 3 columns] shar...
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scanf() leaves the new line char in the buffer

...ing whitespace automatically before trying to parse conversions other than characters. The character formats (primarily %c; also scan sets %[…] — and %n) are the exception; they don't skip whitespace. Use " %c" with a leading blank to skip optional white space. Do not use a trailing blank in ...
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RegEx to find two or more consecutive chars

I need to determine if a string contains two or more consecutive alpha chars. Two or more [a-zA-Z] side by side. Example: ...
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How to get a list of user accounts using the command line in MySQL?

...access. Therefore, this is the query that gives all user accounts SELECT CONCAT(QUOTE(user),'@',QUOTE(host)) UserAccount FROM mysql.user; share | improve this answer | fol...