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How to print a stack trace in Node.js?
... was constructed.
var stack = new Error().stack
console.log( stack )
or more simply:
console.trace("Here I am!")
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bootstrap modal removes scroll bar
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can you please be more specific?
– El Dude
Jul 31 '14 at 22:46
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Exploitable PHP functions
...re nasty. Some of these don't seem very useful to the attacker. Others are more useful than you might think. For instance if allow_url_fopen=On then a url can be used as a file path, so a call to copy($_GET['s'], $_GET['d']); can be used to upload a PHP script anywhere on the system.
Also if a site...
How do you reverse a string in place in JavaScript?
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Possible to iterate backwards through a foreach?
...s answer to a similar question[(stackoverflow.com/a/3320924/199364), for a more modern answer, using Linq, and discussing both lists, and other enumerables.
– ToolmakerSteve
Mar 2 '17 at 20:28
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Appending the same string to a list of strings in Python
...ally need a list, but just need an iterator, a generator expression can be more efficient (although it does not likely matter on short lists):
(s + mystring for s in mylist)
These are very powerful, flexible, and concise. Every good python programmer should learn to wield them.
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What happens to C# Dictionary lookup if the key does not exist?
...ee no indication that that question states that at all. It says it's doing more work than ContainsKey, which is true, because it has to extract the value as well. It's not doing two lookups though.
– Jon Skeet
Dec 2 '12 at 17:56
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Should I use string.isEmpty() or “”.equals(string)?
...ernal length of an private array whereas equals(Object anObject) does much more (e.g. checking instanceof). Perfromance-wise, isEmpty() is generally faster.
– Turing85
Jul 21 '15 at 8:28
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AppStore - App status is ready for sale, but not in app store
...might take 24 hours before your App is available on AppStore.
If it takes more than days then contact Apple.
Refer below screenshot.
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What's the difference between the atomic and nonatomic attributes?
...m Makes sense. I like your comment to another answer that thread-safety is more a model-level concern. From an IBM thread safety definition: ibm.co/yTEbjY "If a class is correctly implemented, which is another way of saying that it conforms to its specification, no sequence of operations (reads or w...