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execJs: 'Could not find a JavaScript runtime' but execjs AND therubyracer are in Gemfile
...u its: sudo apt-get install nodejs
I'm using 64bit ubuntu 11.10
update:
From @Galina 's answer below I'm guessing that the latest version of nodejs is required,
so @steve98177 your best option on a redhat(or CentOS) box is to install from source code as @Galina did, but as you can't "make/install...
How do I remove duplicates from a C# array?
I have been working with a string[] array in C# that gets returned from a function call. I could possibly cast to a Generic collection, but I was wondering if there was a better way to do it, possibly by using a temp array.
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Programmatically get the cache line size?
...t sysconf(3).
sysconf (_SC_LEVEL1_DCACHE_LINESIZE)
You can also get it from the command line using getconf:
$ getconf LEVEL1_DCACHE_LINESIZE
64
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Where did the name `atoi` come from?
...ble finding any official source on it... but in this listing of man pages from Third Edition Unix (1973) collected by Dennis Ritchie himself, it does contain the line:
atoi(III): convert ASCII to integer
In fact, even the first edition Unix (ca 1971) man pages list atoi as meaning Ascii to I...
Failure [INSTALL_FAILED_ALREADY_EXISTS] when I tried to update my application
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adb install -r does not always work (I've got an EVO 4G from Sprint that refuses to behave as expected). The only work around I've found is to remove the application manually. Sometimes, I even have to do it through the phone's UI because the EVO is so temperamental.
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How do you exit from a void function in C++?
How can you prematurely exit from a function without returning a value if it is a void function? I have a void method that needs to not execute its code if a certain condition is true. I really don't want to have to change the method to actually return a value.
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Is there a difference between using a dict literal and a dict constructor?
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I think you have pointed out the most obvious difference. Apart from that,
the first doesn't need to lookup dict which should make it a tiny bit faster
the second looks up dict in locals() and then globals() and the finds the builtin, so you can switch the behaviour by defining a loca...
RegEx match open tags except XHTML self-contained tags
...gular expression parsing will extinguish the voices of mortal man from the sphere I can see it can you see ̲͚̖͔̙î̩́t̲͎̩̱͔́̋̀ it is beautiful the final snuffing of the lies of Man ALL IS LOŚ͖̩͇̗̪̏̈́T ALL IS LOST the pon̷y he comes he c̶̮omes he comes t...
How to send HTTP request in java? [duplicate]
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You can use java.net.HttpUrlConnection.
Example (from here), with improvements. Included in case of link rot:
public static String executePost(String targetURL, String urlParameters) {
HttpURLConnection connection = null;
try {
//Create connection
URL url = ne...
What are all the common undefined behaviours that a C++ programmer should know about? [closed]
...literal during preprocessing
Function and Template
Not returning a value from a value-returning function (directly or by flowing off from a try-block)
Multiple different definitions for the same entity (class, template, enumeration, inline function, static member function, etc.)
Infinite recursion...