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Length of a JavaScript object
... methods to Object is usually safe, though.
Here's an update as of 2016 and widespread deployment of ES5 and beyond. For IE9+ and all other modern ES5+ capable browsers, you can use Object.keys() so the above code just becomes:
var size = Object.keys(myObj).length;
This doesn't have to modify...
Parse usable Street Address, City, State, Zip from a string [closed]
...s in a normalized table. I need to do this for approximately 4,000 records and it needs to be repeatable.
24 Answers
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How can I concatenate two arrays in Java?
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Here's a simple method that will concatenate two arrays and return the result:
public <T> T[] concatenate(T[] a, T[] b) {
int aLen = a.length;
int bLen = b.length;
@SuppressWarnings("unchecked")
T[] c = (T[]) Array.newInstance(a.getClass().getComponentType(...
Why does Java switch on contiguous ints appear to run faster with added cases?
... (bytecode instruction tableswitch).
However, once the JIT starts its job and compiles the bytecode into assembly, the tableswitch instruction does not always result in an array of pointers: sometimes the switch table is transformed into what looks like a lookupswitch (similar to an if/else if stru...
Adding div element to body or document in JavaScript
... but it also removes the current contents in body. How to add div element and keep contents on body?
9 Answers
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What is __pycache__?
From what I understand, a cache is an encrypted file of similar files.
10 Answers
10
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Dealing with float precision in Javascript [duplicate]
... I want to group them by rounding them down to the nearest multiple of x and convert the result to a string.
5 Answers
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Cloning a MySQL database on the same MySql instance
...s a bit dodgy.
Integrated from various good other answers
Both mysqldump and mysql commands accept options for setting connection details (and much more), like:
mysqldump -u <user name> --password=<pwd> <original db> | mysql -u <user name> -p <new db>
Also, if the ...
Best practice for Python assert
...l this an example of using them. This is more an example of properties in and of themselves: docs.python.org/library/functions.html#property
– Jason Baker
Jun 3 '09 at 13:43
3
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How to disable HTML button using JavaScript?
...attributes are defined as boolean, which means you can specify their value and leave everything else out. i.e. Instead of disabled="disabled", you include only the bold part. In HTML 4, you should include only the bold part as the full version is marked as a feature with limited support (although th...