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App Inventor 2 字典代码块 · App Inventor 2 中文网
...常称为键）与另一个值关联的数据结构。
Q：App Inventor 2 什么情况下需要使用字典？
A：列表能完成字典的绝大部分功能，不过字典具有比列表更好的查找性能，因此如果要对数据结构执行大量的操作，建议优先使用字典。
显...
What are the big improvements between guava and apache equivalent libraries?
...that is absent from their counterpart. Thus, limiting yourself to only one library might be unwise.
That being said, if I had to choose, I'd opt to use Guava, keeping Apache Commons around for the (rare) cases where Guava does not have the needed functionality. Let me attempt to explain why.
Guava...
Why am I getting a “401 Unauthorized” error in Maven?
...ested the call with curl
curl -u username:password http://url/artifactory/libs-snapshot-local/com/myproject/api/1.0-SNAPSHOT/api-1.0-20160128.114425-1.jar --request PUT --data target/api-1.0-SNAPSHOT.jar
and I got the error:
{
"errors" : [ {
"status" : 401,
"message" : "Artifactory co...
图表组件 · App Inventor 2 中文网
...图表数据
趋势线
图表
图表组件用于绘制其附加数据（如二维图表数据组件）的组件。有五种不同的图表类型，包括折线图、面积图、散点图、条形图和饼图，可通过类型 属性修改。
图表组件有其他可...
Difference between a “coroutine” and a “thread”?
...l is not involved in the coroutine switches.
—http://www.boost.org/doc/libs/1_55_0/libs/coroutine/doc/html/coroutine/overview.html
A language that supports native threads can execute its threads (user threads) onto the operating system's threads (kernel threads). Every process has at least one...
How do HTML parses work if they're not using regexp?
...ating it yourself with lots of custom logic isn't such a great idea. Use a library that supports the standard algorithm if you can. e.g. search.cpan.org/~tobyink/HTML-HTML5-Parser-0.03/lib/HTML/HTML5/… / code.google.com/p/html5lib
– Quentin
Mar 8 '10 at 11:03...
Basic example of using .ajax() with JSONP?
... <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js"></script>
<script>
$(document).ready(function(){
$.ajax({
url: 'http://twitter.com/status/user_timeline/padraicb.json?cou...
Install dependencies globally and locally using package.json
... mocha and babel now
"scripts": {
"test": "mocha",
"build": "babel -d lib src",
"prepublish": "babel -d lib src"
}
Then at your command prompt you can run:
npm run build # finds babel
npm test # finds mocha
npm publish # will run babel first
But if you really want to install globally, you ...
Have Grunt generate index.html for different setups
... 'DEVELOPMENT' -->
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.js"></script>
<script src="../src/js/foo1.js"></script>
<script src="../src/js/foo2.js"></script>
<script src="../src/js/jquery.blah.js"></script&...
Detach (move) subdirectory into separate Git repository
...e.sh
sudo ln -s \
/usr/share/doc/git/contrib/subtree/git-subtree.sh \
/usr/lib/git-core/git-subtree
Thanks to rui.araujo from the comments.
Clearing your history
By default removing files from Git doesn't actually remove them, it just commits that they aren't there anymore. If you want to actually ...