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gem install: Failed to build gem native extension (can't find header files)
... Fedora 14 and I have MySQL and MySQL server 5.1.42 installed and running.
Now I tried to do this as root user:
18 Answers
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How to extract year and month from date in PostgreSQL without using to_char() function?
... That's right. U can use to compare: date(date_trunc( 'month', now())) = to_Date(5::varchar || ' ' || 2017::varchar, 'mm YYYY')
– Alejandro Salamanca Mazuelo
May 19 '17 at 21:22
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Standard deviation of a list
... function _sum rather than the built-in sum which I've used in its place.
Now we have for example:
>>> mean([1, 2, 3])
2.0
>>> stddev([1, 2, 3]) # population standard deviation
0.816496580927726
>>> stddev([1, 2, 3], ddof=1) # sample standard deviation
0.1
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Convert HH:MM:SS string to seconds only in javascript
...s a minified version of the accepted answer. Given that many web pages are now in excess of 1MB, that saving is somewhat less than insignificant.
– RobG
May 19 '18 at 9:24
4
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Javascript Array.sort implementation?
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I believe V8 is now using TimSort: github.com/v8/v8/blob/78f2610345fdd14ca401d920c140f8f461b631d1/…
– celwell
Jan 1 '19 at 1:18
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Android studio - Failed to find target android-18
...ough. In my case, I changed both compileSdkVersion, and buildToolsVersion. Now it work. Hope this help
buildscript {
repositories {
mavenCentral()
}
dependencies {
classpath 'com.android.tools.build:gradle:0.6.+'
}
}
apply plugin: 'android'
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What is the best way to uninstall gems from a rails3 project?
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Bundler now has a bundle remove GEM_NAME command (since v1.17.0, 25 October 2018).
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Give examples of functions which demonstrate covariance and contravariance in the cases of both over
...t = aList;
List<? super String> contravariantList = aList;
You can now access all methods of covariantList that doesn't take a generic parameter (as it must be something "extends Object"), but getters will work fine (as the returned object will always be of type "Object")
The opposite is tr...
Ternary Operators in JavaScript Without an “Else”
...ore than one statement in the future:
if(condition) { x = true; }
Edit: Now that you mention the actual code in which your question applies to:
if(!defaults.slideshowWidth)
{ defaults.slideshowWidth = obj.find('img').width()+'px'; }
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How to list all functions in a Python module?
...e you actually get a dict containing functionName:<function> and you now have the ability to CALL that function dynamically. good times!
– jsh
Jan 28 '11 at 21:31
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