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Popup弹出菜单扩展 · App Inventor 2 中文网
...1::info.png"
UrsAI2Popup1.Show()
}
when UrsAI2Popup1.MenuItem1Selected(title, checked) {
Label1.Text = title
}
动态菜单管理
when Screen1.Initialize() {
UrsAI2Popup1.Anchor = Button1
UrsAI2Popup1.MenuItemsFromString = "选项1::info.png"
UrsAI2Popup1.Show()
...
How to add/update an attribute to an HTML element using JavaScript?
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Obligatory jQuery solution. Finds and sets the title attribute to foo. Note this selects a single element since I'm doing it by id, but you could easily set the same attribute on a collection by changing the selector.
$('#element').attr( 'title', 'foo' );
...
使用 JSON 和 Web API · App Inventor 2 中文网
...们有了包含结果的字典，我们就可以访问如下示例中的 title 和 body 属性。
JSON 示例
{
"userId": 1,
"id": 1,
"title": "sunt aut facere repellat provident occaecati excepturi optio reprehenderit",
"body": "quia et suscipit\nsuscipit recusandae consequuntur expedita ...
Remove a character from the end of a variable
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Use target=${1%/}
See this the parameter substitution of this bash scripting guide for more.
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How can I generate a diff for a single file between two branches in github
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I used nulltoken's answer to put together a simple convenience script for pulling up a diff between two commits on GitHub from the command line.
You can find the full script on gist, but here are the good bits:
# Parse the following patterns for repo urls to get the github repo url
# h...
Difference between variable declaration syntaxes in Javascript (including global variables)?
...stant.
Documents its unchanging nature for other programmers.
Lets the JavaScript engine optimize on the basis that it won't change.
#2 a = 0;
This creates a property on the global object implicitly. As it's a normal property, you can delete it. I'd recommend not doing this, it can be unclear t...
RVM is not a function, selecting rubies with 'rvm use …' will not work
...f course you will need the following in your ~/.profile [[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm"
– nadersoliman
Sep 3 '14 at 4:30
3
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How to format numbers? [duplicate]
I want to format numbers using JavaScript.
17 Answers
17
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Get final URL after curl is redirected
...nks, that helped me. I made some improvements and wrapped that in a helper script "finalurl":
#!/bin/bash
curl $1 -s -L -I -o /dev/null -w '%{url_effective}'
-o output to /dev/null
-I don't actually download, just discover the final URL
-s silent mode, no progressbars
This made it possible to ...