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JavaScript null check
...ecial singleton object which is helpful for signaling "no value". You can test for it by comparison and, as usual in JavaScript, it's a good practice to use the === operator to avoid confusing type coercion:
var a = null;
alert(a === null); // true
As @rynah mentions, "undefined" is a bit confus...
jquery data selector
...ailable operators in the code below. Amongst them is ~= which allows regex testing:
$('a:data(category~=^mus..$,artist.name~=^M.+a$)');
I've tested it with a few variations and it seems to work quite well. I'll probably add this as a Github repo soon (with a full test suite), so keep a look out!
...
Folder structure for a Node.js project
...le when using git as source control)
/spec contains specifications for BDD tests.
/tests contains the unit-tests for an application (using a testing
framework, see
here)
NOTE: both /vendor and /support are deprecated since NPM introduced a clean package management. It's recommended to handle all 3...
How to tell if a string contains a certain character in JavaScript?
...
I would go with /hello/g.test(your_string). While indexOf works, I think a regex test tells a better story of what you're trying to accomplish. If I'm trying to find a sequence of characters inside a string, the index is irrelevant.
...
How to convert strings into integers in Python?
... return True
except Exception:
return False
x = "1"
y = "test"
x_test = is_number(x)
print(x_test)
It should print to IDLE True because x is a number.
y_test = is_number(y)
print(y_test)
It should print to IDLE False because y in not a number.
...
Mocking member variables of a class using Mockito
I am a newbie to development and to unit tests in particular .
I guess my requirement is pretty simple, but I am keen to know others thoughts on this.
...
Mixing a PHP variable with a string literal
Say I have a variable $test and it's defined as: $test = 'cheese'
4 Answers
4
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How to get a string after a specific substring?
...ajii's. Other than that, I think @arshajii's is the best for being the fastest -- it does not create any unnecessary copies/substrings.
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Getting the first character of a string with $str[0]
...ey send you, from type to type[] for example, and then send 'Control' and 'Test' as the data for this array, $_POST['type'][0] will now return Control rather than C whereas substr($_POST['type'], 0, 1) will simply just fail.
So yes, there may be a problem with using $str[0], but that depends on the...
How to replace multiple white spaces with one white space
...rmalized = NormalizeWithSplitAndJoin(bigString);
var suite = new TestSuite<string, string>("Normalize")
.Plus(NormalizeWithSplitAndJoin)
.Plus(NormalizeWithRegex)
.RunTests(bigString, normalized);
suite.Display(ResultColumns.All, suite.Fin...