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Textarea that can do syntax highlighting on the fly?

... It's not possible to achieve the required level of control over presentation in a regular textarea. If you're OK with that, try CodeMirror or Ace (formerly skywriter and bespin), or Monaco (used in MS VSCode). From the dupl...
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Avoid synchronized(this) in Java?

... an "accidentally" variant) I'm more worried about accidentally. What it amounts to is that this use of this is part of your class' exposed interface, and should be documented. Sometimes the ability of other code to use your lock is desired. This is true of things like Collections.synchronize...
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How to run a shell script in OS X by double-clicking?

...ipt that has user execution permission on OS X, but when I double click on it, it opens in a text editor. How can I get it to run by double-clicking it? ...
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What is the difference between Polymer elements and AngularJS directives?

...n an import. Nothing "links" <x-foo> to x-foo.html. In your example, it's assumed the Custom Element definition of <x-foo> (e.g. <element name="x-foo">) is defined in x-foo.html. When the browser sees that definition, it's registered as a new element. On to questions! What is th...
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Deleting an object in java?

... You should remove the references to it by assigning null or leaving the block where it was declared. After that, it will be automatically deleted by the garbage collector (not immediately, but eventually). Example 1: Object a = new Object(); a = null; // afte...
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Regular expression for floating point numbers

I have a task to match floating point numbers. I have written the following regular expression for it: 12 Answers ...
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Create a pointer to two-dimensional array

...o the first element of the array uint8_t (*matrix_ptr)[20] = l_matrix; With typedef, this looks cleaner typedef uint8_t array_of_20_uint8_t[20]; array_of_20_uint8_t *matrix_ptr = l_matrix; Then you can enjoy life again :) matrix_ptr[0][1] = ...; Beware of the pointer/array world in C, much ...
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Can I position an element fixed relative to parent? [duplicate]

I find that when I position an element fixed, it doesn't matter if the parent is positioned relative or not, it will position fixed, relative to the window? ...
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What are the use cases of Graph-based Databases (http://neo4j.org/)? [closed]

... I used a graph database in a previous job. We weren't using neo4j, it was an in-house thing built on top of Berkeley DB, but it was similar. It was used in production (it still is). The reason we used a graph database was that the data being stored by the system and the operations the syste...
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What does AngularJS do better than jQuery? [closed]

...utorials on how to use Angular, but I am not clear on why or when to use it, or what benefits I may find in comparison to just using jQuery. ...