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Why does CSS not support negative padding?
...gives me a satisfactory reason. Cheers. :)
– ikartik90
Feb 12 '11 at 6:29
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What if you want to ...
How to convert array values to lowercase in PHP?
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Why is “int i = 2147483647 + 1;” OK, but “byte b = 127 + 1;” is not compilable?
... MByDMByD
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Simultaneously merge multiple data.frames in a list
....frame(i = c("c","d","a"), l = 7:9, stringsAsFactors=FALSE)
Update June 2018: I divided the answer in three sections representing three different ways to perform the merge. You probably want to use the purrr way if you are already using the tidyverse packages. For comparison purposes below, you'll...
How can I install an older version of a package via NuGet?
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Try the following:
Uninstall-Package Newtonsoft.Json -Force
Followed by:
Install-Package Newton...
How to serve an image using nodejs
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2016 Update
Examples with Express and without Express that actually work
This question is over 5 years old but every answer has some problems.
TL;DR
Scroll down for examples to serve an image with:
express.static
express...
How do I get the picture size with PIL?
...emuephimuemue
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Is it good practice to NULL a pointer after deleting it?
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Setting a pointer to 0 (which is "null" in standard C++, the NULL define from C is somewhat different) avoids crashes on double deletes.
Consider the following:
Foo* foo = 0; // Sets the pointer to 0 (C++ NULL)
delete foo; // Won't do anything
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Javascript Regex: How to put a variable inside a regular expression?
...licious content (e.g. the variable comes from user input)
ES6 Update
In 2019, this would usually be written using a template string, and the above code has been updated. The original answer was:
var regex = new RegExp("ReGeX" + testVar + "ReGeX");
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string.replace(regex, "replacement");
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How do I pause my shell script for a second before continuing?
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