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Why doesn't JavaScript support multithreading?
...ure.
Thread-safety of data is guaranteed because all data communicated to/from the worker is serialized/copied.
For more info, read:
http://www.whatwg.org/specs/web-workers/current-work/
http://ejohn.org/blog/web-workers/
...
Mercurial stuck “waiting for lock”
...schooner.uwaterloo.ca/twiki/bin/view/MAG/HgLockError
Here is a transcript from Tortoise Hg Workbench console
% hg debuglocks
lock: user None, process 7168, host HPv32 (114213199s)
wlock: free
[command returned code 1 Sat Jan 07 18:00:18 2017]
% hg debuglocks --force-lock
[command completed succes...
When are you supposed to use escape instead of encodeURI / encodeURIComponent?
...irable characteristics and in the absence of legacy usage would be removed from this specification. ...
... Programmers should not use or assume the existence of these features and behaviours when writing new ECMAScript code....
Behaviour:
https://developer.mozilla.org/en-US/docs/Web/JavaScript...
Is !important bad for performance?
...
* Transfer the state for |aPropID| (which may be a shorthand)
* from |aFromBlock| to this block. The property being transferred
* is !important if |aIsImportant| is true, and should replace an
* existing !important property regardless of its own importance
* if |aOverrideI...
Is duplicated code more tolerable in unit tests?
...he logic and methods that are used internally. These shouldn't be accessed from outside the class. This is one reason why it is important to correctly encapsulate logic in a class using access modifiers or the convention in the language being used.
– Nathan
Jul...
JS: iterating over result of getElementsByClassName using Array.forEach
...re Internet Explorer or you're using an ES5 transpiler), you can use Array.from:
Array.from(els).forEach((el) => {
// Do stuff here
console.log(el.tagName);
});
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How to show “if” condition on a sequence diagram?
...
Are there any other UML tools apart from Visio. Is enterprise architect good enough?
– Venkat Madhav
Dec 12 '13 at 14:15
1
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Can I use GDB to debug a running process?
...rity in the Linux kernel - for example attaching to the child of one shell from another.
You'll likely need to set /proc/sys/kernel/yama/ptrace_scope depending on your requirements. Many systems now default to 1 or higher.
The sysctl settings (writable only with CAP_SYS_PTRACE) are:
0 - classic p...
Overriding id on create in ActiveRecord
...les that change infrequently and only change by developers. So when going from ActiveHash to ActiveRecord, it's easiest to just keep all of the foreign key references the same.
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How to manage client-side JavaScript dependencies? [closed]
...m confused. How exactly can requirejs pull in an arbitrary javascript file from the internet (I am not talking about the ones in its repo like jquery but less famous ones)? Can it read a package.json file? And it does not work with CoffeeScript... Am I missing something??
– pat...