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:first-child not working as expected
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you can also use
.detail_container h1:nth-of-type(1)
By changing the number 1 by any other number you can select any other h1 item.
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What's the difference between eval, exec, and compile?
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In Python 3, exec is a function; its use has no effect on the compiled bytecode of the function where it is used.
Thus basically:
>>> a = 5
>>> eval('37 + a') # it is an expression
42
>>> exec('37 + a') # it is an expression statement; value is ignored (None is...
How can I use console logging in Internet Explorer?
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You can access IE8 script console by launching the "Developer Tools" (F12). Click the "Script" tab, then click "Console" on the right.
From within your JavaScript code, you can do any of the following:
<script type="text/javascript">
console.log('...
Removing cordova plugins from the project
...nually doing cordova plugins ls and then see if you can remove plugins one by one using cordova plugins rm plugin_name. From the error, it looks like one of the plugins are not physically present in your project. Using this method you can find that plugin.
– Hamid Tavakoli
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Devise - How do I forbid certain users from signing in?
...e User model:
class User < ActiveRecord::Base
#this method is called by devise to check for "active" state of the model
def active_for_authentication?
#remember to call the super
#then put our own check to determine "active" state using
#our own "is_active" column
super and ...
Akka Kill vs. Stop vs. Poison Pill?
... All messages that are ahead of it in the queue will be processed first.
By contrast, the Kill message causes the actor to throw an ActorKilledException which gets handled using the normal supervisor mechanism. So the behaviour here depends on what you've defined in your supervisor strategy. The ...
How do I load a PHP file into a variable?
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I suppose you want to get the content generated by PHP, if so use:
$Vdata = file_get_contents('http://YOUR_HOST/YOUR/FILE.php');
Otherwise if you want to get the source code of the PHP file, it's the same as a .txt file:
$Vdata = file_get_contents('path/to/YOUR/FILE.ph...
Why are local variables not initialized in Java?
...of the variable and it should not take a default value. If the programmer, by mistake, did not initialize a local variable and it take default value, then the output could be some unexpected value. So in case of local variables, the compiler will ask the programmer to initialize with some value befo...
Delete Local Folder in TFS
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You can cloak the folder in your local workspace.
By setting the working folder status to Cloaked, you can specify that a local folder should not copy files from the server when you perform a Get operation. You might choose to do this to conserve space on your local disk. If...
How can I specify the base for Math.log() in JavaScript?
...rns the natural logarithm of x (same as ln(x)), for base 10 you can divide by Math.log(10) (same as ln(10)):
function log10(val) {
return Math.log(val) / Math.LN10;
}
Math.LN10 is a built-in precomputed constant for Math.log(10), so this function is essentially identical to:
function log10(val...