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Set value to NULL in MySQL
... can be inserted/updated without quotes:
INSERT INTO user (name, something_optional) VALUES ("Joe", NULL);
UPDATE user SET something_optional = NULL;
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PHP calculate age
I'm looking for a way to calculate the age of a person, given their DOB in the format dd/mm/yyyy.
37 Answers
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best way to get the key of a key/value javascript object
... MDC documentation provides an alternative implementation (which also uses for...in btw):
if(!Object.keys) Object.keys = function(o){
if (o !== Object(o))
throw new TypeError('Object.keys called on non-object');
var ret=[],p;
for(p in o) if(Object.prototype.hasOwnProperty.c...
How to write a multidimensional array to a text file?
... numpy.save. Pickling it will work fine, as well, but it's less efficient for large arrays (which yours isn't, so either is perfectly fine).
If you want it to be human readable, look into numpy.savetxt.
Edit: So, it seems like savetxt isn't quite as great an option for arrays with >2 dimensions...
Eclipse error: 'Failed to create the Java Virtual Machine'
... in eclipse.ini, changing reducing -Xmx to 512m from 1024 fixed the issue for me. The system was having 1GB RAM.
– Dexter
Jul 17 '14 at 9:26
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Ruby on Rails: Delete multiple hash keys
...y))
Also, you wouldn't have to monkey patch, since the Rails team did it for you!
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Getting the names of all files in a directory with PHP
For some reason, I keep getting a '1' for the file names with this code:
15 Answers
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Find a private field with Reflection?
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Sorry for extreme necro-posting, but this threw me off. GetCustomAttributes(Type) will not return null if the attribute isn't found, it simply returns an empty array.
– amnesia
Jan 30 '17 at ...
WinDbg基础资料（日本語） - IT优秀资料 - 清泛网 - 专注C/C++及内核技术
...////////////////////////////////////////////
Section 1： How to Make PDB for DocuWorks Project at Release Build
C++の場合
Project Properties
① C/C++ --> General-->Debug Information Format : Program Database (/Zi)
※--> Optimization --> Optimization : Disabl...
PHP server on local machine?
...hout uploading them to my host. Basically testing them on my own machine before I upload them. How do I do that?
13 Answers...