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What does enumerable mean?

...his condition is in place because objects have many more properties, especially from inheritance: console.log(Object.getOwnPropertyNames(Object.prototype)); // ["constructor", "toString", "toLocaleString", "valueOf", "hasOwnProperty", "isPrototypeOf", "propertyIsEnumerable", /* etc. */] Each of t...
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How to prevent long words from breaking my div?

...tc), you'll need overflow to make it not destroy the layout/design. So by all means use another method (or a combination of them) but remember to add overflow too so you cover all browsers. Edit 2 (to address your comment below): Start off using the CSS overflow property isn't perfect but it stop...
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Value Change Listener to JTextField

... Add a listener to the underlying Document, which is automatically created for you. // Listen for changes in the text textField.getDocument().addDocumentListener(new DocumentListener() { public void changedUpdate(DocumentEvent e) { warn(); } public void removeUpdate(DocumentE...
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CSS center text (horizontally and vertically) inside a div block

...al align". Since they tend to be hacks or adding complicated divs... I usually use a table with a single cell to do it... to make it as simple as possible. Update for 2020: Unless you need make it work on earlier browsers such as Internet Explorer 10, you can use flexbox. It is widely supported...
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Where should I put tags in HTML markup?

...ace to put the <script> tags and included JavaScript? I seem to recall that you are not supposed to place these in the <head> section, but placing at the beginning of the <body> section is bad, too, since the JavaScript will have to be parsed before the page is rendered compl...
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Convert number to month name in PHP

... The recommended way to do this: Nowadays, you should really be using DateTime objects for any date/time math. This requires you to have a PHP version >= 5.2. As shown in Glavić's answer, you can use the following: $monthNum = 3; $dateObj = DateTime::createFromFormat('!m',...
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Can't operator == be applied to generic types in C#?

...perator ==(Test a, Test b) { Console.WriteLine("Overloaded == called"); return a.Equals(b); } public static bool operator !=(Test a, Test b) { Console.WriteLine("Overloaded != called"); return a.Equals(b); } } } Output Inline: Overloaded == c...
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How to install packages offline?

... download a python package and it's dependencies from pypi for offline installation on another machine? Is there any easy way to do this with pip or easy_install? I'm trying to install the requests library on a FreeBSD box that is not connected to the internet. ...
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Unresolved Import Issues with PyDev and Eclipse

... In the properties for your pydev project, there's a pane called "PyDev - PYTHONPATH", with a sub-pane called "External Libraries". You can add source folders (any folder that has an __init__.py) to the path using that pane. Your project code will then be able to import modules fro...
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How do I add a placeholder on a CharField in Django?

... Look at the widgets documentation. Basically it would look like: q = forms.CharField(label='search', widget=forms.TextInput(attrs={'placeholder': 'Search'})) More writing, yes, but the separation allows for better abstraction of more complic...