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App Inventor 2 拓展参考文档 · App Inventor 2 中文网
...》。
【实用小技巧】从.aia项目文件中提取.aix拓展包
【自己写拓展】为AppInventor2开发拓展(Extension)
中文网拓展
【AI大模型】LLMAI2Ext 自研拓展：接入DeepSeek、Kimi、通义千问…等国内大模型，...
How do I split a string on a delimiter in Bash?
...ring an array and implicitly "loop" over the delimited elements, calling a function on each:
myPubliMail() {
printf "Seq: %6d: Sending mail to '%s'..." $1 "$2"
# mail -s "This is not a spam..." "$2" </path/to/body
printf "\e[3D, done.\n"
}
mapfile < <(printf "%s\0" "$IN") -td \...
How to map with index in Ruby?
...
Here are two more options for 1.8.6 (or 1.9) without using enumerator:
# Fun with functional
arr = ('a'..'g').to_a
arr.zip( (2..(arr.length+2)).to_a )
#=> [["a", 2], ["b", 3], ["c", 4], ["d", 5], ["e", 6], ["f", 7], ["g", 8]]
# The simplest
n = 1
arr.map{ |c| [c, n+=1 ] }
#=> [["a", 2], ["b...
Amazon S3 boto - how to create a folder?
... folders or directories in S3. You can create file names like "abc/xys/uvw/123.jpg", which many S3 access tools like S3Fox show like a directory structure, but it's actually just a single file in a bucket.
share
|
...
How can I iterate over an enum?
...b = 220,
c = -1
};
static const Type All[] = { a, b, c };
}
void fun( const MyEnum::Type e )
{
std::cout << e << std::endl;
}
int main()
{
// all
for ( const auto e : MyEnum::All )
fun( e );
// some
for ( const auto e : { MyEnum::a, MyEnum::b } )
fun( e );
...
Advances social tools app with cool UI - Koded Apps - Kodular Community
... giving him credits by adding link of his extensions
https://deephost.in/aix=40
Request
Please check it
And share your openion about it and suggest me improvements as well as test it for error
I’ll be very grateful if you find me some errors or help me to improve its design or functions
Screensh...
Count number of rows within each group
...count the number of rows within each group. I reguarly use the aggregate function to sum data as follows:
14 Answers
...
How to get the function name from within that function?
How can I access a function name from inside that function?
20 Answers
20
...
Meaning of epsilon argument of assertEquals for double values
...nal double DELTA = 1e-15;
@Test
public void testDelta(){
assertEquals(123.456, 123.456, DELTA);
}
If you're using hamcrest assertions, you can just use the standard equalTo() with two doubles (it doesn't use a delta). However if you want a delta, you can just use closeTo() (see javadoc), e.g....
SQLAlchemy IN clause
...
How about
session.query(MyUserClass).filter(MyUserClass.id.in_((123,456))).all()
edit: Without the ORM, it would be
session.execute(
select(
[MyUserTable.c.id, MyUserTable.c.name],
MyUserTable.c.id.in_((123, 456))
)
).fetchall()
select() takes two parameters...