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In javascript, is an empty string always false as a boolean?
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answered Jan 1 '12 at 12:05
HosseinHossein
3,74922 gold badges1919 silver badges4343 bronze badges
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execJs: 'Could not find a JavaScript runtime' but execjs AND therubyracer are in Gemfile
I'm getting this error:
18 Answers
18
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How connect Postgres to localhost server using pgAdmin on Ubuntu?
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If I do that, this error appear Error connecting to the server: fe_sendauth: no password supplied
– TuGordoBello
Jul 23 '14 at 20:00
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Visual Studio: Multiple post-build commands?
... Unfortunately, it seemst that at least VS2015 does not report an error if one of the intermediate commands fails...it reports the result of the last command as result of the post-build step.
– Johannes S.
Jan 29 '16 at 12:57
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How do I call Objective-C code from Swift?
... and vice versa.
If you add a .swift file to an older project and get the error dyld: Library not loaded: @rpath/libswift_stdlib_core.dylib, try completely restarting Xcode.
While it was originally possible to use pure Swift classes (Not descendents of NSObject) which are visible to Objective-C by ...
requestFeature() must be called before adding content
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Well, just do what the error message tells you.
Don't call setContentView() before requestFeature().
Note:
As said in comments, for both ActionBarSherlock and AppCompat library, it's necessary to call requestFeature() before super.onCreate()
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What does the explicit keyword mean?
... implicit conversions. Adding it to the above class will create a compiler error at the function call DoBar (42). It is now necessary to call for conversion explicitly with DoBar (Foo (42))
The reason you might want to do this is to avoid accidental construction that can hide bugs.
Contrived examp...
Prototypical inheritance - writing up [duplicate]
... speed.
var Hamster = function(name){
if(name===undefined){
throw new Error("Name cannot be undefined");
}
this.name=name;
}
Hamster.prototype.getSpeed=function(){
return 3;
}
Hamster.prototype.run=function(){
//Russionmini does not need to implement this function as
//it will do exactl...
Webrick as production server vs. Thin or Unicorn?
...rver you use?
– Vlad
Jun 2 '12 at 4:05
Yes, delayed_job is unrelated to Webrick, unless your jobs use Webrick APIs (wh...
How to remove a column from an existing table?
... it drops the column only if it exists in the table else it will not throw error.
Instead of using big IF wrappers to check the existence of column before dropping it you can just run the above DDL statement
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