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Why would a JavaScript variable start with a dollar sign? [duplicate]
...
Very common use in jQuery is to distinguish jQuery objects stored in variables from other variables.
For example, I would define:
var $email = $("#email"); // refers to the jQuery object representation of the dom object
var em...
Array initializing in Scala
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Calculating Distance between two Latitude and Longitude GeoCoordinates
... @SaeedNeamati - was looking for this too, according to msdn.microsoft.com/en-us/library/… - it's in metres.
– Andy Butland
Mar 24 '16 at 8:56
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How do I finish the merge after resolving my merge conflicts?
...th on merges install kdiff3 and configure it as a mergetool. Instructions: http://doodkin.com/2016/05/29/git-merge-easy-github-this-branch-has-conflicts-that-must-be-resolved-use-the-command-line/
That page contains this video: https://www.youtube.com/watch?v=Cc4xPp7Iuzo
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File to byte[] in Java
...b = new byte[(int)f.length()];
f.readFully(b);
Documentation for Java 8: http://docs.oracle.com/javase/8/docs/api/java/io/RandomAccessFile.html
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How can I force Powershell to return an array when a call only returns one object?
...mands in parentheses with an @ at the beginning:
$serverIps = @(gwmi Win32_NetworkAdapterConfiguration
| Where { $_.IPAddress }
| Select -Expand IPAddress
| Where { $_ -like '*.*.*.*' }
| Sort)
Specify the data type of the variable as an array:
[array]$serverIps = gwmi Win32_...
AngularJS - Any way for $http.post to send request parameters instead of JSON?
...quest function:
var app = angular.module('myApp');
app.config(function ($httpProvider) {
$httpProvider.defaults.transformRequest = function(data){
if (data === undefined) {
return data;
}
return $.param(data);
}
});
That way all calls to $http.post wil...
Android Facebook integration with invalid key hash
...ion suggested by @Mahendran.
Also, if you see the error originally posted (http://i.stack.imgur.com/58q3v.png), most probably the key hash you see on the screen is your real one. If nothing else works, try inputting it in Facebook.
I got all those results with: Windows 7 64-bit edition, Android St...
List goals/targets in GNU make that contain variables in their definition
...ion would be to create a trivial makefile, dummy.mk, with these contents:
__all_targets__: ; #no-op
Now invoke make as make -p -f Makefile -f dummy.mk __all_targets__. On any substantial build, the difference in the amount of output generated by make is significant. For example:
$ gmake -pn | ...
Minimizing NExpectation for a custom distribution in Mathematica
.... Let's extract it from your definition above into simple functions:
pdf[a_, b_, m_, s_, x_] := (1/(2*(a + b)))*a*b*
(E^(a*(m + (a*s^2)/2 - x))*Erfc[(m + a*s^2 - x)/(Sqrt[2]*s)] +
E^(b*(-m + (b*s^2)/2 + x))*Erfc[(-m + b*s^2 + x)/(Sqrt[2]*s)])
pdf2[a_, b_, m_, s_, x_] := pdf[a, b, m, s, Log...