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Most efficient way to store thousand telephone numbers
...digits left. We view these remaining five digits as 17-bit binary integers and store k of those bits using one method and 17 - k = m with a different method, determining k at the end to minimize the required space.
We first sort the phone numbers (all reduced to 5 decimal digits). Then we count how...
Available text color classes in Bootstrap
...ger.
The bootstrap 4 documentation lists this under utilities -> color, and has more options:
primary, secondary, success, danger, warning, info, light, dark, muted, white.
To access them one uses the class text-[class-name]
So, if I want the primary text color for example I would do something li...
Uploading Files in ASP.net without using the FileUpload server control
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what if there are more than 1 inputs and you want separate functions performed with both sets of files.
– Neville Nazerane
Jun 11 '14 at 11:01
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VS2012 return to a normal TFS checkin window?
... in VS2010. It now seems to take over the team explorer tab in my sidebar, and buries the important things - like which files I've changed. Is there any way to return to a normal popup window for check-ins in VS2012?
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When to use valueChangeListener or f:ajax listener?
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The valueChangeListener will only be invoked when the form is submitted and the submitted value is different from the initial value. It's thus not invoked when only the HTML DOM change event is fired. If you would like to submit the form during the HTML DOM change event, then you'd need to add an...
PHP: How to remove all non printable characters in a string?
I imagine I need to remove chars 0-31 and 127,
17 Answers
17
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How do I remove objects from a JavaScript associative array?
...tances of Array, if you do not want to create a sparsely populated array - and you usually don't - then you should use Array#splice or Array#pop.
Note that the delete operator in JavaScript does not directly free memory. Its purpose is to remove properties from objects. Of course, if a property bei...
Django: Set foreign key using integer?
...y is a particularly useful aspect of Django, one that everyone should know and use from time to time when appropriate.
caveat:
@RuneKaagaard points out that employee.type is not accurate afterwards in recent Django versions, even after calling employee.save() (it holds its old value). Using it wou...
Get query from java.sql.PreparedStatement [duplicate]
...;
To my experience, the ones which do so are at least the PostgreSQL 8.x and MySQL 5.x JDBC drivers. For the case your JDBC driver doesn't support it, your best bet is using a statement wrapper which logs all setXxx() methods and finally populates a SQL string on toString() based on the logged inf...
What's a standard way to do a no-op in python?
I often find myself writing if / elif / else constructs in python, and I want to include options which can occur, but for which the corresponding action is to do nothing. I realise I could just exclude those if statements, but for readability I find it helps to include them all, so that if you are l...