大约有 7,710 项符合查询结果（耗时：0.0170秒） [XML]
When should Flask.g be used?
...
As an addendum to the information in this thread: I've been a bit confused by the behavior of flask.g too, but some quick testing has helped me to clarify it. Here's what I tried out:
from flask import Flask, g
app = Flask(__name__)
with app.app_c...
What is NODE_ENV and how to use it in Express?
...lowing code to access the environment variable yourself so that you can perform your own checks and logic:
var environment = process.env.NODE_ENV
Assume production if you don't recognise the value:
var isDevelopment = environment === 'development'
if (isDevelopment) {
setUpMoreVerboseLogging()
}...
Who is “us” and who is “them” according to Git?
...ore, "us" = HEAD, but since git did a new checkout behind-the-scenes to perform this rebase, HEAD is NOT the branch you were on when you typed git rebase master. Instead, us, or HEAD, is some merge-base commit at which point a conflict occurred, and them is the other commit, which is some commit fro...
What are the best practices for JavaScript error handling?
...l not get much value from the slides - this summary gives you 90% of the information. It is still valuable information. Cheers!
– Philippe Hebert
May 4 '17 at 11:25
add a comm...
asynchronous vs non-blocking
...ure out.
To make a good choice, you must analyze your need and test the performance of different architectures. There is no such an architecture that is suitable for various of needs.
share
|
improv...
What's the difference between SoftReference and WeakReference in Java?
...rather than expand the heap, whereas the -server JRE tries to keep your performance high by preferring to expand the heap (if possible) rather than clear SoftReferences. One size does not fit all.
share
|
...
Is Fortran easier to optimize than C for heavy calculations?
...
The languages have similar feature-sets. The performance difference comes from the fact that Fortran says aliasing is not allowed, unless an EQUIVALENCE statement is used. Any code that has aliasing is not valid Fortran, but it is up to the programmer and not the compiler ...
Version vs build in Xcode
...ting with Xcode 4. In the target summary I have the iOS application target form with fields: identifier, version, build, devices, and deployment target. The version field is blank and the build field is 3.4.0 (which matches the version of the app from when I was still editing with Xcode 3).
...
Angular directives - when and how to use compile, controller, pre-link and post-link [closed]
...t-link
If one is to use all four function, the directive will follow this form:
myApp.directive( 'myDirective', function () {
return {
restrict: 'EA',
controller: function( $scope, $element, $attrs, $transclude ) {
// Controller code goes here.
},
co...
Does Parallel.ForEach limit the number of active threads?
... when it really needs to.
Have a look at the PFX Team Blog for loads of information about how it allocates work and all kinds of other topics.
Note that in some cases you can specify the degree of parallelism you want, too.
...