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Why is “using namespace std;” considered bad practice?
I've been told by others that writing using namespace std; in code is wrong, and that I should use std::cout and std::cin directly instead.
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“date(): It is not safe to rely on the system's timezone settings…”
...he following snippet at the beginning of your code:
date_default_timezone_set('Africa/Lagos');//or change to whatever timezone you want
The list of timezones can be found at http://www.php.net/manual/en/timezones.php.
sha...
How to validate an email address in JavaScript
Is there a regular expression to validate an email address in JavaScript?
95 Answers
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How to set background color of an Activity to white programmatically?
How can I set the background color of an Activity to white programatically?
11 Answers
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How do I set environment variables from Java?
How do I set environment variables from Java? I see that I can do this for subprocesses using ProcessBuilder . I have several subprocesses to start, though, so I'd rather modify the current process's environment and let the subprocesses inherit it.
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What is the purpose of the var keyword and when should I use it (or omit it)?
What exactly is the function of the var keyword in JavaScript, and what is the difference between
19 Answers
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Does the Java &= operator apply & or &&?
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Unlimited Bash History [closed]
...d was, or how some command broke something weeks ago. How do I change this setting?
4 Answers
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XPath: How to select elements based on their value?
...], there are only two types of data:
[number] to select a node from node-set
[bool] to filter a node-set from node-set
In this case, the value is evaluated to boolean by function boolean(), and there is a rule:
Filters are always evaluated with respect to a context.
When you need to compar...
Setting a width and height on an A tag
Is it possible to set the width and height in pixels on an anchor tag? I'd like to have the anchor tag to have a background image while retaining the text inside the anchor.
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