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How to modify a global variable within a function in bash?
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Thanks for the point, but I have to return an string array, and within the function I have to add elements to two global string arrays.
– harrison4
May 9 '14 at 13:00
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Logical Operators, || or OR?
...that when $this->positions() returns false or null, $positions is empty array. But it isn't. The value is TRUE or FALSE depends on what $this->positions() returns.
If you need to get value of $this->positions() or empty array, you have to use:
$positions = $this->positions() or [];
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How to use ng-repeat without an html element
... need to use ng-repeat (in AngularJS) to list all of the elements in an array.
8 Answers
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How do I catch a numpy warning like it's an exception (not just for testing)?
... option for numpy.seterr:
>>> import numpy as np
>>> np.array([1])/0 #'warn' mode
__main__:1: RuntimeWarning: divide by zero encountered in divide
array([0])
>>> np.seterr(all='print')
{'over': 'warn', 'divide': 'warn', 'invalid': 'warn', 'under': 'ignore'}
>>>...
How to determine function name from inside a function
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From the Bash Reference Manual:
FUNCNAME
An array variable containing the names of all shell functions currently in the execution call stack. The element with index 0 is the name of any currently-executing shell function. The bottom-most element (the one with the highe...
Is there any kind of hash code function in JavaScript?
...ing else is converted to a string).
You could, alternatively, maintain an array which indexes the objects in question, and use its index string as a reference to the object. Something like this:
var ObjectReference = [];
ObjectReference.push(obj);
set['ObjectReference.' + ObjectReference.indexOf(...
How do I reference a javascript object property with a hyphen in it?
...j["styleAttr"]
Use key notation rather than dot
style["text-align"]
All arrays in js are objects and all objects are just associative arrays, this means you can refer to a place in an object just as you would refer to a key in an array.
arr[0]
or the object
obj["method"] == obj.method
a couple ...
Why Large Object Heap and why do we care?
...point where copying no longer improves perf. With a special exception for arrays of double, they are considered 'large' when the array has more than 1000 elements. That's another optimization for 32-bit code, the large object heap allocator has the special property that it allocates memory at addr...
How to use Namespaces in Swift?
...y with Frameworks, but also with the Standard Library. You can "overwrite" Array, for example. Then "Array" refers to your own custom Array class, and Standard Library's Array is available as "Swift.Array".
– George
Aug 10 '14 at 18:47
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How to Apply Gradient to background view of iOS Swift App
...e Colors you're providing to gradient must be of type CGColor. So set your array of CGColor to gl.colors.
The correct code is :
class Colors {
var gl:CAGradientLayer!
init() {
let colorTop = UIColor(red: 192.0 / 255.0, green: 38.0 / 255.0, blue: 42.0 / 255.0, alpha: 1.0).cgColor
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