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Proper way to wait for one function to finish before continuing?
... work like this is to use a callback function, eg:
function firstFunction(_callback){
// do some asynchronous work
// and when the asynchronous stuff is complete
_callback();
}
function secondFunction(){
// call first function and pass in a callback function which
// first ...
What is the difference between a definition and a declaration?
...declares foo
}
... or is a typedef or using statement.
typedef long LONG_32; // declares LONG_32
using namespace std; // declares std
Now for the big reason why it's important to understand the difference between a declaration and definition: the One Definition Rule. From section 3.2.1 of t...
Check if key exists and iterate the JSON array using Python
...ary Pinter"}, "message": "How ARE you?", "comments": {"count": 0}, "updated_time": "2012-05-01", "created_time": "2012-05-01", "to": {"data": [{"id": "1543", "name": "Honey Pinter"}]}, "type": "status", "id": "id_7"}"""
def getTargetIds(jsonData):
data = json.loads(jsonData)
if 'to' not in ...
How do I automatically update a timestamp in PostgreSQL
...he time stamp when a new row is inserted as I can do in MySQL using CURRENT_TIMESTAMP.
4 Answers
...
How to do error logging in CodeIgniter (PHP)
...on/logs folder writable
In /application/config/config.php set $config['log_threshold'] = 1; or use a higher number, depending on how much detail you want in your logs
Use log_message('error', 'Some variable did not contain a value.');
To send an email you need to extend the core CI_Exceptions class...
Moving average or running mean
...ode below works great.
mylist = [1, 2, 3, 4, 5, 6, 7]
N = 3
cumsum, moving_aves = [0], []
for i, x in enumerate(mylist, 1):
cumsum.append(cumsum[i-1] + x)
if i>=N:
moving_ave = (cumsum[i] - cumsum[i-N])/N
#can do stuff with moving_ave here
moving_aves.append(movi...
Best way to do Version Control for MS Excel
...iew to "Workbook" view.
Contents of "Workbook" view:
Private Sub Workbook_Open()
ImportCodeModules
End Sub
Private Sub Workbook_BeforeSave(ByVal SaveAsUI As Boolean, Cancel As Boolean)
SaveCodeModules
End Sub
I'll be settling into this workflow over the next few weeks, and I'll post if I ha...
How do I get a TextBox to only accept numeric input in WPF?
...nly want to allow numbers, dots and dashes.
private static readonly Regex _regex = new Regex("[^0-9.-]+"); //regex that matches disallowed text
private static bool IsTextAllowed(string text)
{
return !_regex.IsMatch(text);
}
If you want to prevent pasting of incorrect data hook up the DataObj...
Creating a config file in PHP
...
@Luka You can use var_export function.
– Hasan Bayat
Sep 30 '17 at 12:25
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Tool to convert Python code to be PEP8 compliant
...ther plugin "Python Script". However, it works. Plz check here: bit.ly/pep8_tonizer
– kmonsoor
Apr 28 '14 at 15:23
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