大约有 43,000 项符合查询结果（耗时：0.0725秒） [XML]
Difference between this and self in JavaScript
... // true
If you're using a function that is executed in the global scope and is not in strict mode, this defaults to window, and therefore
function foo() {
console.log(
window.self === window, // is self window?
window.self === this, // is self this?
this === window ...
Installing rmagick on Ubuntu
...agick setup on Ubuntu 10.04. Looked here but had no joy. I even compiled and installed ImageMagick from source, but the instructions here still didn't help me when I try to install RMagick using RubyGems. I got this error:
...
An error occurred while installing pg (0.17.1), and Bundler cannot continue
I just installed Rails 4.0.2 and when creating a new app, in the bundle stage I get:
16 Answers
...
How can I debug javascript on Android?
...orking on a project that involves Raphaeljs. Turns out, it doesn't work on Android. It does on the iPhone.
18 Answers
...
Proper use of errors
I'm using TypeScript for a reasonably large project, and am wondering what the standard is for the use of Error s. For example, say I hand an index out of bounds exception in Java:
...
How to make asynchronous HTTP requests in PHP
...). The best you can do is to set a low timeout on fsockopen to 0.1 (100ms) and $my_timeout to 100ms. You risk though, that the request timeout.
– Chris Cinelli
Oct 24 '12 at 23:22
...
AWS Error Message: A conflicting conditional operation is currently in progress against this resourc
...ault to US region (used AWSCLI)
realized, the bucket shall go to EU region and deleted it (used AWS console)
(few minutes later) tried to create the bucket, specifying the EU region
At step 3, AWS console has shown me the error message from title of your question.
So I guess, that the bucket in U...
trying to animate a constraint in swift
... that I want to enlarge its width when tapped on. I set up the constraints and made sure the constraint on the left has the lower priority then the one that I am trying to animate on the right side.
...
What do ellipsis […] mean in a list?
...inside itself, which can not be printed. p contains p which contains p ... and so on. The [...] notation is a way to let you know this, and to inform that it can't be represented! Take a look at @6502's answer to see a nice picture showing what's happening.
Now, regarding the three new items after ...
Is there a “previous sibling” selector?
...g the element comes after this one, but not necessarily immediately after) and is a CSS3 selector. + is for next sibling and is CSS2.1.
See Adjacent sibling combinator from Selectors Level 3 and 5.7 Adjacent sibling selectors from Cascading Style Sheets Level 2 Revision 1 (CSS 2.1) Specification.
...