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Object reference not set to an instance of an object.Why doesn't .NET show which object is `null`?
...
(For information about the new exception helper in Visual Studio 2017 see the end of this answer)
Consider this code:
String s = null;
Console.WriteLine(s.Length);
This will throw a NullReferenceException in the second line ...
Get epoch for a specific date using Javascript
...ent Date or even a specified Date based on the computer's timezone, you're free to continue using this method.
// Seconds since Epoch (Unix timestamp format)
new Date().getTime() / 1000 // local Date/Time since Epoch in seconds
new Date(2020, 11, 1).getTime() / 1000 // time since Epoc...
Should I be using object literals or constructor functions?
...hrough the constructor) what properties the object initializes/contains. A free literal is just an amorphous blob of data.
You might as well have an external verify function that acts on a plain old data object:
var data = {
foo: 42,
bar: 43
};
function verify(data) {
return data.foo ...
Base64 Decoding in iOS 7+
...ogether. Anyway, you have a point in saying that is very readable, so feel free to use it.
– Gabriele Petronella
Mar 16 '14 at 22:52
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Javascript library for human-friendly relative date formatting [closed]
...right direction. I'll make a note to update it later, or if you want, feel free to edit the answer.
– alex
Oct 2 '12 at 0:11
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Compiling a java program into an executable [duplicate]
...exe or otherwise native app on the main platforms (Windows Linux, Mac) for free. It runs on any OS, supports built-in code signing and auto-updating, and it can optionally bundle the JRE in a very small (heavily compressed) package.
– AntonyM
Feb 20 '13 at 11:5...
Re-doing a reverted merge in Git
...o see immediately the relevant options in this case. If you disagree, feel free to revert.
– VonC
Jul 3 '09 at 11:00
5
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Make a program run slowly
...ogram (requires code change).
You can hook common functions like malloc(), free(), clock_gettime() etc. using LD_PRELOAD, and do some silly stuff like burn a few million CPU cycles with rep; hop;, insert memory barriers etc. This will slow down the program for sure. (See this answer for an example o...
How to configure XAMPP to send mail from localhost?
...e to configure SMTP on your server. You can use G Suite SMTP by Google for free:
<?php
$mail = new PHPMailer(true);
// Send mail using Gmail
if($send_using_gmail){
$mail->IsSMTP(); // telling the class to use SMTP
$mail->SMTPAuth = true; // enable SMTP authentication
$mail-&g...
What is a deadlock?
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@rickyProgrammer it's a lock that won't become free, no matter how long you wait, because of the circular queue.
– Keith
Sep 28 '17 at 19:37
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