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How to validate an email address in PHP
...($email, FILTER_VALIDATE_EMAIL)) {
// invalid emailaddress
}
Additionally you can check whether the domain defines an MX record:
if (!checkdnsrr($domain, 'MX')) {
// domain is not valid
}
But this still doesn't guarantee that the mail exists. The only way to find that out is by sending ...
How to see all TODO tasks in Android Studio?
How could I open a view in Android Studio where all tasks that I've created using // TODO comments would be displayed?
2 ...
What are all the common undefined behaviours that a C++ programmer should know about? [closed]
What are all the common undefined behaviours that a C++ programmer should know about?
11 Answers
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Why shouldn't I use PyPy over CPython if PyPy is 6.3 times faster?
...to mention, has tenuous support for C extensions. It has support, but typically at slower-than-Python speeds and it's iffy at best. Hence a lot of modules simply require CPython. PyPy doesn't support numpy PyPy now supports numpy. Some extensions are still not supported (Pandas, SciPy, etc.), take a...
What does “program to interfaces, not implementations” mean?
...t worried about implementation and the interface signature determines what all operations can be done. This can be used to change the behavior of a program at run-time. It also helps you to write far better programs from the maintenance point of view.
Here's a basic example for you.
public enum La...
Best way to add page specific JavaScript in a Rails 3 app?
...equire jquery
//= require jquery_ujs
//= require_tree ./global // requires all js files in global folder
in a new admin.js manifest file
//= require_tree ./admin // requires all js files in admin folder
Make sure this new js manifest is loaded by editing config/production.rb
config.assets.prec...
Add a UIView above all, even the navigation bar
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[self.navigationController.view addSubview:overlayView]; is what you really want
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Java 8: How do I work with exception throwing methods in streams?
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You need to wrap your method call into another one, where you do not throw checked exceptions. You can still throw anything that is a subclass of RuntimeException.
A normal wrapping idiom is something like:
private void safeFoo(final A a) {
try {
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How to escape a JSON string containing newline characters using JavaScript?
...ing new line character. This has to be escaped and then posted using AJAX call. Can any one suggest a way to escape the string with JavaScript. I am not using jQuery.
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Print content of JavaScript object? [duplicate]
Typically if we just use alert(object); it will show as [object Object] . How to print all the content parameters of an object in JavaScript?
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