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How to get an element's top position relative to the browser's viewport?

... The existing answers are now outdated. The native getBoundingClientRect() method has been around for quite a while now, and does exactly what the question asks for. Plus it is supported across all browsers (including IE 5, it seems!) From MDN page: ...
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convert a JavaScript string variable to decimal/money

...parseFloat(document.getElementById(amtid4).innerHTML).toFixed(2); num is now a string with the number formatted with two decimal places. share | improve this answer | follo...
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What is the difference between save and export in Docker?

...r a couple of days and I already made some images (which was really fun!). Now I want to persist my work and came to the save and export commands, but I don't fully understand them. ...
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Flex-box: Align last row to grid

...ce-between) but start from the left like on previous lines... I wanted to know, if it is possible to generalize your amazing solution. – Tom Jan 20 '16 at 10:33 45 ...
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IEnumerable vs List - What to Use? How do they work?

...ample where a.race.Family == "Canidae" select a; } Now you have a method that selects an initial sample ("AllSpotted"), plus some filters. So now you can do this: var Leopards = Feline(AllSpotted()); var Hyenas = Canine(AllSpotted()); So is it faster to use List over IEnum...
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Is cout synchronized/thread-safe?

... Technically true for C++98/C++03, but I think everybody knows that. But this does not answer the two interesting questions: What about C++0x? What do typical implementations actually do? – Nemo Jun 16 '11 at 15:46 ...
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What are some alternatives to ReSharper? [closed]

... Devexpress's CodeRush Is not the same as Resharper. CodeRush, to my knowledge, improves productivity, rather than enforcing standards on Code-Style and also suggestions and code conversions and all that. which is in my opinion why its much faster than resharper on big solutions (+10 heavy pr...
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is_null($x) vs $x === null in PHP [duplicate]

PHP has two (that I know of, and three if you count isset() ) methods to determine if a value is null: is_null() and === null . I have heard, but not confirmed, that === null is faster, but in a code review someone strongly suggested that I use is_null() instead as it is specifically design...
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Difference between List, List, List, List, and List

...hink anyone would use it considering you can not have an identifier at all now. – if_zero_equals_one Jun 3 '11 at 21:22 1 ...
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Android emulator: How to monitor network traffic?

... I've found the emulators I use already now have tcpdump installed, and the command #1 works without installing one. You can also run it with "adb -e shell tcpdump -s0 -w /sdcard/emulator.cap". – Les Mar 21 '17 at 12:43 ...