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JavaScript equivalent of jQuery's extend method
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You can use the ECMA 2018 spread operator in object literals...
var config = {key1: value1};
var default = {key1: default1, key2: default2, key 3: default 3};
var settings = {...default, ...config}
//resulting properties of settings:
settings = {key1...
Releasing memory in Python
...ne or more free calls (for probably a bit more than 50.5mb)? You'd have to read your platform's malloc, and then walk the various tables and lists to see its current state. (On some platforms, it may even make use of system-level information, which is pretty much impossible to capture without making...
What is the difference between and ? [duplicate]
... by is static(out.write) you mean any thing in write like lets say EL that reads from request will be dynamic or static please can you help me here thanks or it will be treated as string ${someVar}
– shareef
Dec 8 '14 at 13:32
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#pragma once vs include guards? [duplicate]
...ptimize include guards. My gut says go with whatever system your code is already using. I use BOTH pragma once and guards.
– KitsuneYMG
Jul 17 '09 at 15:32
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When should one use a spinlock instead of mutex?
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The Theory
In theory, when a thread tries to lock a mutex and it does not succeed, because the mutex is already locked, it will go to sleep, immediately allowing another thread to run. It will continue to sleep until being woken up, which will be the case ...
How to write a large buffer into a binary file in C++, fast?
...hen you are writing huge chunks there is no need for a buffer when writing/reading (on a blocking device). As such the data should be passed directly to the underlying device (thus by-passing the buffer). Though if you see a difference this would contradict this and make my wonder why the write is a...
commandButton/commandLink/ajax action/listener method not invoked or input value not set/updated
... the browser's JS console. Usually googling the exact error message will already give you the answer. See also Manually adding / loading jQuery with PrimeFaces results in Uncaught TypeErrors.
If you're using Ajax via JSF 2.x <f:ajax> or e.g. PrimeFaces <p:commandXxx>, make sure that you...
Invalidating JSON Web Tokens
...y be hit to record invalidations and remove expired invalidations and only read at server launch. Under a load-balancing architecture, the in-memory blacklist can poll the DB at short intervals, like 10s, limiting the exposure of invalidated tokens. These approaches allow the server to continue auth...
How do I merge two dictionaries in a single expression in Python (taking union of dictionaries)?
...ng passed as keyword arguments to the dict constructor), it's difficult to read, it's not the intended usage, and so it is not Pythonic.
Here's an example of the usage being remediated in django.
Dictionaries are intended to take hashable keys (e.g. frozensets or tuples), but this method fails in Py...
Spring DAO vs Spring ORM vs Spring JDBC
...rt of the Spring framework. There is a common module that you should first read to get used to the principles. Documentation can be found here:
Single html page: http://docs.spring.io/spring-data/data-commons/docs/1.9.2.RELEASE/reference/html/
PDF: http://docs.spring.io/spring-data/data-commons/do...