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How to call a function from a string stored in a variable?

...ble to pass arguments using both of these methods as so $function_name = 'foobar'; $function_name(arg1, arg2); call_user_func_array($function_name, array(arg1, arg2)); If the function you are calling belongs to an object you can still use either of these $object->$function_name(arg1, arg2);...
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Reading a plain text file in Java

...s/io/IOUtils.java.html FileInputStream inputStream = new FileInputStream("foo.txt"); try { String everything = IOUtils.toString(inputStream); } finally { inputStream.close(); } And even simpler with Java 7: try(FileInputStream inputStream = new FileInputStream("foo.txt")) { Stri...
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Link to reload current page

...g directories, not files. This means that if you are at http://example.com/foo/bar.html you are really in the directory /foo/ and a href value of . in bar.html will refer to /foo/ rather than bar.html Think of it as navigating the file system in a terminal; you can never cd into a file :) EDIT 2: ...
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Align labels in form next to input

...ething similar to this: <div class="form-element"> <label for="foo">Long Label</label> <input type="text" name="foo" id="foo" /> </div> Style: .form-element label { display: inline-block; width: 150px; } ...
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How to extract the n-th elements from a list of tuples?

... and use **dict to create keyword arguments: def test(foo=3, bar=3): return foo*bar then d = {'bar': 9, 'foo'=12}; print test(**d) – Wayne Werner Jul 22 '10 at 12:58 ...
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What's the difference between equal?, eql?, ===, and ==?

...hen constructs. The following code snippets are logically identical: case foo when bar; p 'do something' end if bar === foo p 'do something' end eql? (Hash-key comparison) Ruby uses :eql? (in combination with the method hash) to compare Hash-keys. In most classes :eql? is identical with :==...
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How to run only one task in ansible playbook?

... tags: - packages - template: src=templates/src.j2 dest=/etc/foo.conf tags: - configuration If you wanted to just run the “configuration” and “packages” part of a very long playbook, you could do this: ansible-playbook example.yml --tags "configuration,package...
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Can a C# class inherit attributes from its interface?

...r usage. As an example: using System; using System.ComponentModel; class Foo { [AttributeProvider(typeof(IListSource))] public object Bar { get; set; } static void Main() { var bar = TypeDescriptor.GetProperties(typeof(Foo))["Bar"]; foreach (Attribute attrib in bar.Att...
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What is the best way to conditionally apply attributes in AngularJS?

... It's important to note that ng-attr-foo will still always invoke the foo directive if it exists, even ng-attr-foo evaluates to undefined. discussion – hughes Mar 7 '17 at 21:32 ...
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Swift class introspection & generics

...tance = typeOfObject() I quickly tested it with String: let someType = "Fooo".dynamicType let emptyString = someType() let threeString = someType("Three") which worked fine. share | improve thi...