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Comparing date part only without comparing time in JavaScript
...me zone to Pacific Time (US). In the same browser console type date2.toDateString() and you'll get back Mon Sep 19 2011 rather than Tuesday the 20th!
– Adam
Aug 13 '15 at 21:47
10
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Locking pattern for proper use of .NET MemoryCache
...cache returns null then do the lock check to see if you need to create the string. It greatly simplifies the code.
const string CacheKey = "CacheKey";
static readonly object cacheLock = new object();
private static string GetCachedData()
{
//Returns null if the string does not exist, prevents ...
Read only the first line of a file?
How would you get only the first line of a file as a string with Python?
8 Answers
8
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Null check in an enhanced for loop
... Note that Collections.emptyList() will avoid allocating an extra object (IIRC).
– Jon Skeet
Feb 12 '10 at 6:31
7
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Random number generator only generating one random number
...eant to be unique, the GetHashCode of the Guid in .NET is derived from its string representation. The output is quite random for my liking.
– nawfal
Aug 3 '15 at 17:28
...
How to create a JavaScript callback for knowing when an image is loaded?
...
.complete + callback
This is a standards compliant method without extra dependencies, and waits no longer than necessary:
var img = document.querySelector('img')
function loaded() {
alert('loaded')
}
if (img.complete) {
loaded()
} else {
img.addEventListener('load', loaded)
img.a...
How do you access a website running on localhost from iPhone browser
...ption key while clicking on the Wi-Fi menu bar item. This gives a bunch of extra information about your connection including your local IP address.
– William Robertson
Feb 23 '16 at 23:04
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How can I check if a URL exists via PHP?
...hp there are a few things to pay attention to:
Is the url itself valid (a string, not empty, good syntax), this is quick to check server side.
Waiting for a response might take time and block code execution.
Not all headers returned by get_headers() are well formed.
Use curl (if you can).
Prevent f...
Find intersection of two nested lists?
...efficiency. btw, the advantage of this solution is that filter() preserves strings and tuples types.
– jfs
Mar 14 '09 at 10:46
3
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Configure apache to listen on port other than 80
... config file as sarul mentioned (e.g.: C:\wamp\bin\apache\apache2.4.9\conf\extra\httpd-vhosts.conf) is necessary if you are setting your files path in there and changing the port as well. If you change it again, remember to restart the service: httpd.exe -k restart -n "YourServiceName".
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