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this.setState isn't merging states as I would expect

...construct a new state and then call setState() on that: var newSelected = _.extend({}, this.state.selected); newSelected.name = 'Barfoo'; this.setState({ selected: newSelected }); I've used function _.extend() function (from underscore.js library) here to prevent modification to the existing sele...
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How to minify php page html output?

...b.com/mrclay/minify HTML Tell Apache to deliver HTML with GZip - this generally reduces the response size by about 70%. (If you use Apache, the module configuring gzip depends on your version: Apache 1.3 uses mod_gzip while Apache 2.x uses mod_deflate.) Accept-Encoding: gzip, deflate Content-Encodi...
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Would you, at present date, use JBoss or Glassfish (or another) as Java EE server for a new project?

...ce them otherwise? If so, there's your answer. Do I have to use EJBs? Really? Avoid them if at all possible--they are really only needed for very large, enterprise-class systems. Remember that they are merely tools, and big ones at that (can anyone say "Golden Sledgehammer"?). They are heavily...
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Why do x86-64 systems have only a 48 bit virtual address space?

... Because that's all that's needed. 48 bits give you an address space of 256 terabyte. That's a lot. You're not going to see a system which needs more than that any time soon. So CPU manufacturers took a shortcut. They use an instruction set...
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Is there a JavaScript / jQuery DOM change listener?

Essentially I want to have a script execute when the contents of a DIV change. Since the scripts are separate (content script in the Chrome extension & webpage script), I need a way simply observe changes in DOM state. I could set up polling but that seems sloppy. ...
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@selector() in Swift?

... for: .touchUpInside) view.perform(#selector(UIView.insertSubview(_:aboveSubview:)), with: button, with: otherButton) The great thing about this approach? A function reference is checked by the Swift compiler, so you can use the #selector expression only with class/method pair...
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How would you count occurrences of a string (actually a char) within a string?

...nsion methods on the string class. I guess they figured devs wouldn't want all those extension methods to show up on the string class. Probably a wise decision. – Judah Gabriel Himango Feb 15 '09 at 23:27 ...
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How can I programmatically determine if my app is running in the iphone simulator?

...er "Compiling source code conditionally" The relevant definition is TARGET_OS_SIMULATOR, which is defined in /usr/include/TargetConditionals.h within the iOS framework. On earlier versions of the toolchain, you had to write: #include "TargetConditionals.h" but this is no longer necessary on the ...
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Is there any publicly accessible JSON data source to test with real world data? [closed]

..., for example - A GET request to: https://api.twitter.com/1/statuses/user_timeline.json?include_entities=true&include_rts=true&screen_name=mralexgray&count=1, EDIT: Removed due to twitter restricting their API with OAUTH requirements... {"errors": [{"message": "The Twitter REST API...
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Create an array with random values

... var random_array = new Array(40).fill().map((a, i) => a = i).sort(() => Math.random() - 0.5); I think this does the same as above – Jamie337nichols Sep 16 '19 at 18:47 ...