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Get random item from array [duplicate]
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Vincent SavardVincent Savard
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How do we determine the number of days for a given month in python [duplicate]
I need to calculate the number of days for a given month in python. If a user inputs Feb 2011 the program should be able to tell me that Feb 2011 has 28 days. Could any one tell me which library I should use to determine the length of a given month.
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Count elements with jQuery
Is there a way to count how many elements on the page with a particular class?
8 Answers
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how to make a jquery “$.post” request synchronous [duplicate]
I’ve been googling this and avoiding this error in my bug fix list for a long time now, but I’ve finally reached the end of the list, the last of which I have to make a function return true/false to state whether the validation has succeeded or not.
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Integer.valueOf() vs. Integer.parseInt() [duplicate]
Aside from Integer.parseInt() handling the minus sign (as documented), are there any other differences between Integer.valueOf() and Integer.parseInt() ?
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Conditionally Remove Dataframe Rows with R [duplicate]
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Logic index:
d<-d[!(d$A=="B" & d$E==0),]
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Append an array to another array in JavaScript [duplicate]
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If you want to modify the original array instead of returning a new array, use .push()...
array1.push.apply(array1, array2);
array1.push.apply(array1, array3);
I used .apply to push the individual members of arrays 2 and 3 at once.
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array1.push...
git how to disable push [duplicate]
I am using git and I am doing my development work, which I don't want to push, even by mistake. Is there a method to disable push in certain local repository. One method is to rename the branch, another is to undo push if one does it by mistake, but I hope there should be a more direct method.
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Why am I getting “undefined reference to sqrt” error even though I include math.h header? [duplicate
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The math library must be linked in when building the executable. How to do this varies by environment, but in Linux/Unix, just add -lm to the command:
gcc test.c -o test -lm
The math library is named libm.so, and the -l command option assumes a lib prefix and .a or .s...
How to upgrade R in ubuntu? [closed]
I have R 2.12.1 installed in my ubuntu, and I'd like upgrade to lastest version 2.15, how can achieve that ? Thanks
1 Answ...