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Get the first key name of a javascript object [duplicate]
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If you decide to use Underscore.js you better do
_.values(ahash)[0]
to get value, or
_.keys(ahash)[0]
to get key.
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ValueError: setting an array element with a sequence
...9 when building an array of objects (not necessarily lists) that implement __getitem__ as specified here:github.com/numpy/numpy/issues/5100
– dashesy
Nov 21 '14 at 19:13
add a...
Laravel migration: unique key is too long, even if specified
...e that VARCHAR may have 1, 2 or 4 bytes for each length unit. Example: utf8_mb4 (4 bytes) -> 767 / 4 = 191. Otherwise utf8_general_ci for VARCHAR(X) with X < 85 ( 1 byte ) = O(85) , or utf8_general_ci for VARCHAR(X) with X >= 86 ( 2 bytes ) -> 767 / 2 = 383. Consider also other columns l...
Could not locate Gemfile
...h-4.2$ bundle install
Using rake (0.9.2.2)
Using i18n (0.6.0)
Using multi_json (1.3.6)
Using activesupport (3.2.11)
Using builder (3.0.0)
Using activemodel (3.2.11)
Using erubis (2.7.0)
Using journey (1.0.4)
Using rack (1.4.1)
Using rack-cache (1.2)
Using rack-test (0.6.1)
Using hike (1.2...
Can I get JSON to load into an OrderedDict?
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Yes, you can. By specifying the object_pairs_hook argument to JSONDecoder. In fact, this is the exact example given in the documentation.
>>> json.JSONDecoder(object_pairs_hook=collections.OrderedDict).decode('{"foo":1, "bar": 2}')
OrderedDict([('foo',...
jQuery - replace all instances of a character in a string [duplicate]
...ike this example: for (i = 0; i <= 100; i++) { str = str.replace(/"_0x69b9[" + i.toString() + "]"/g, _array[i]); }
– SalmanShariati
Jan 15 '15 at 10:11
1
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How to detect user inactivity in Android
... MyBaseActivity extends Activity {
public static final long DISCONNECT_TIMEOUT = 300000; // 5 min = 5 * 60 * 1000 ms
private static Handler disconnectHandler = new Handler(new Handler.Callback() {
@Override
public boolean handleMessage(Message msg) {
// todo
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Does SQLAlchemy have an equivalent of Django's get_or_create?
...ortcut readily available AFAIK.
You could generalize it ofcourse:
def get_or_create(session, model, defaults=None, **kwargs):
instance = session.query(model).filter_by(**kwargs).first()
if instance:
return instance, False
else:
params = dict((k, v) for k, v in kwargs.it...
How to set environment variables in Jenkins?
...red May 16 '12 at 20:28
malenkiy_scotmalenkiy_scot
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How to initialize a vector in C++ [duplicate]
... give you the beginning and end of an array:
template <typename T, size_t N>
T* begin(T(&arr)[N]) { return &arr[0]; }
template <typename T, size_t N>
T* end(T(&arr)[N]) { return &arr[0]+N; }
And then you can do this without having to repeat the size all over:
int vv[]...