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Get average color of image via Javascript
...eorg talking about a small code by the Opera dev :
// Get the CanvasPixelArray from the given coordinates and dimensions.
var imgd = context.getImageData(x, y, width, height);
var pix = imgd.data;
// Loop over each pixel and invert the color.
for (var i = 0, n = pix.length; i < n; i += 4) {
...
SublimeText encloses lines in white rectangles
...ste the following code to this newly created theme file, right before </array> tag:
<dict>
<key>name</key>
<string>anaconda Error Outline</string>
<key>scope</key>
<string>anaconda.outline.illegal</string>
<key>settings<...
Simplest way to check if key exists in object using CoffeeScript
...bj. (CoffeeScript uses of when referring to keys, and in when referring to array values: val in arr will test whether val is in arr.)
thejh's answer is correct if you want to ignore the object's prototype. Jimmy's answer is correct if you want to ignore keys with a null or undefined value.
...
Determine if an object property is ko.observable
...observable is computed? I can determine if an observable is an observable array via $.isArray(vm[key]()), but do you know how to differentiate observables from a ko.computed??
– Adam Rackis
Mar 8 '12 at 22:19
...
Unable to verify leaf signature
...undled in the binary and it overrides them whenever you supply your own ca array. I don't know if its http module will also look to the OS chain. However, curl on OS X seems to only use the OS chain and not allow manually specified certs.
– coolaj86
Jul 31 '1...
How do you assert that a certain exception is thrown in JUnit 4 tests?
...fBoundsException.class)
public void testIndexOutOfBoundsException() {
ArrayList emptyList = new ArrayList();
Object o = emptyList.get(0);
}
Though answer https://stackoverflow.com/a/31826781/2986984 has more options for JUnit <= 4.12.
Reference :
JUnit Test-FAQ
...
Encoding Javascript Object to Json string
...ou very much. The k was defined. The problem was me being stupid using new Array() instead of an object {}.
– Lukas Oppermann
Jul 24 '11 at 22:21
...
Defining static const integer members in class definition
...The value is available as a constant at compile time (you can dimension an array with it) static const y; [no initializer] must be defined in a cpp file and may be used either as an rvalue or an lvalue.
– Dale Wilson
Aug 17 '12 at 16:54
...
How to put more than 1000 values into an Oracle IN clause [duplicate]
...
Excellent questions! I often use the array-technique I already posted but I use it when the user has hand picked multiple rows in a user interface data grid. However it is unlikely that a user picks >1000 rows by hand.
– tuinstoel
...
How to cast List to List
...ects
But here's a more versatile solution:
List<Object> objects = Arrays.asList("String1", "String2");
List<String> strings = objects.stream()
.map(element->(String) element)
.collect(Collectors.toList());
There's a ton of benefits, ...