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Number of elements in a javascript object
...ntProperties(obj) {
var count = 0;
for(var prop in obj) {
if(obj.hasOwnProperty(prop))
++count;
}
return count;
}
In case of ECMAScript 5 capable implementations, this can also be written as (Kudos to Avi Flax)
function countProperties(obj) {
return Objec...
How to add a default include path for GCC in Linux?
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Not a good idea. This is non-composable (what if you want another dir? what if you want some other GCC switch) and may confuse various scripts or automated tools which make assumptions about gcc.
– einpoklum
Feb 23 at 12:54
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MySQL - UPDATE query based on SELECT Query
I need to check (from the same table) if there is an association between two events based on date-time.
11 Answers
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store and retrieve a class object in shared preference
...es of data members using shared preference.I want to store it as an object.If not shared preference what are my other options?
– androidGuy
Mar 24 '11 at 11:25
5
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How does Python's super() work with multiple inheritance?
...y are listed left to right. In this case, we are looking for __init__. So, if you define
class Third(First, Second):
...
Python will start by looking at First, and, if First doesn't have the attribute, then it will look at Second.
This situation becomes more complex when inheritance starts c...
Debugging automatic properties
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If I was you, I'd temporarily make the property a standard one backed by an internal field...set your breakpoints, and then you can change it back after.
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Match everything except for specified strings
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If you want to make sure that the string is neither red, green nor blue, caskey's answer is it. What is often wanted, however, is to make sure that the line does not contain red, green or blue anywhere in it. For that, anch...
Create a Path from String in Java7
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If possible I would suggest creating the Path directly from the path elements:
Path path = Paths.get("C:", "dir1", "dir2", "dir3");
// if needed
String textPath = path.toString(); // "C:\\dir1\\dir2\\dir3"
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Export query result to .csv file in SQL Server 2008
...comma-delimited text.
To save the results of a query to a file: Ctrl + Shift + F
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How to Copy Contents of One Canvas to Another Canvas Locally
...below this answer, you cannot use a canvas drawing context as your source. If you have a canvas drawing context instead of the canvas element it was created from, there is a reference to the original canvas element on the context under context.canvas.
Here is a jsPerf to demonstrate why this is the...