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Whether a variable is undefined [duplicate]
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if(undefinedVar) will throw an error, but if(someObj.undefinedProperty) will not. In the latter case, you can also skip typeof and use === undefined (or !==), without quotes.
– eyelidlessness
Sep 28 '09 at 8:56
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How can I automatically deploy my app after a git push ( GitHub and node.js)?
I have my application (node.js) deployed on a VPS (linux). I'm using git hub as a repository. How can I deploy the application automatically, on git push ?
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How to pause / sleep thread or process in Android?
I want to make a pause between two lines of code, Let me explain a bit:
12 Answers
12...
How to ignore a property in class if null, using json.net
...but i had to use JsonSerializerSettings not JsonSerializer as it showed an error for the last one
– Yazan
Feb 24 '16 at 8:08
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C# How can I check if a URL exists/is valid?
...om/silly");
}
You would try/catch around the DownloadString to check for errors; no error? It exists...
With C# 2.0 (VS2005):
private bool headOnly;
public bool HeadOnly {
get {return headOnly;}
set {headOnly = value;}
}
and
using(WebClient client = new MyClient())
{
// code as ...
typeof !== “undefined” vs. != null
...have been declared before:
if(typeof neverDeclared === "undefined") // no errors
if(neverDeclared === null) // throws ReferenceError: neverDeclared is not defined
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PHP Sort a multidimensional array by element containing date
...s example, does $array need to contain elements $a and $b? - im getting an error invalid compare function
– Tim
May 26 '10 at 6:52
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Java; String replace (using regular expressions)?
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Still getting error "invalid escape sequence" ... am i missing something?
– Dan Burzo
Mar 10 '09 at 21:03
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Git Extensions: Win32 error 487: Couldn't reserve space for cygwin's heap, Win32 error 0
...ails with something like:
ReBaseImage (msys-1.0.dll) failed with last error = 6
You will need to perform the following steps in order:
Copy the dll to another directory
Rebase the copy using the commands above
Replace the original dll with the copy.
If any issue run the commands as Admini...
Bootstrap trying to load map file. How to disable it? Do I need to do it?
...nt to do so? How to disable it? Do I need to disable it? To not to have an error mark in dev tools, I added that map file, after which all styles are displayed as they defined in less files, which doesn't help me much.
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