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How do I negate a condition in PowerShell?
How do I negate a conditional test in PowerShell?
4 Answers
4
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Using curl to upload POST data with files
... -F "filecomment=This is an image file" \
-F "image=@/home/user1/Desktop/test.jpg" \
localhost/uploader.php
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Replace duplicate spaces with a single space in T-SQL
...
This would work:
declare @test varchar(100)
set @test = 'this is a test'
while charindex(' ',@test ) > 0
begin
set @test = replace(@test, ' ', ' ')
end
select @test
...
Can I have H2 autocreate a schema in an in-memory database?
...could run a script, or just a statement or two:
String url = "jdbc:h2:mem:test;" +
"INIT=CREATE SCHEMA IF NOT EXISTS TEST"
String url = "jdbc:h2:mem:test;" +
"INIT=CREATE SCHEMA IF NOT EXISTS TEST\\;" +
"SET SCHEMA TEST";
String url = "jdbc:h2:mem;" + ...
Initialize a nested struct
...ort string
}
func main() {
c := &Configuration{
Val: "test",
Proxy: Proxy{
Address: "addr",
Port: "port",
},
}
fmt.Println(c)
fmt.Println(c.Proxy.Address)
}
The less proper and ugly way but still works:
c := &Configur...
Get class name using jQuery
...ment has multiple class it is not trivial to check.
Example:
<div id='test' class='main divhover'></div>
Where:
$('#test').attr('class'); // returns `main divhover`.
With .hasClass() we can test if the div has the class divhover.
$('#test').hasClass('divhover'); // returns...
Best way to use Google's hosted jQuery, but fall back to my hosted library on Google fail
...it'll have to time out first before failing. This may take a while. In my test of disconnecting my computer from the network it just tried and tried and tried and didn't timeout. 2) if (!jQuery) will throw an error because jQuery is not defined so Javascript doesn't know what to do with it.
...
MySQL vs MongoDB 1000 reads
I have been very excited about MongoDb and have been testing it lately. I had a table called posts in MySQL with about 20 million records indexed only on a field called 'id'.
...
Why don't they teach these things in school? [closed]
...ve to gather: how much does version control help? How does it help? Unit testing? We can reason about the effectiveness of various techniques, but actually proving that effectiveness conclusively would be very expensive. We'd need to run a complete, realistic software project from beginning to e...
Is double square brackets [[ ]] preferable over single square brackets [ ] in Bash?
..., I heard ksh supports it too). For example, you can do
[[ -e $b ]]
to test whether a file exists. But with [, you have to quote $b, because it splits the argument and expands things like "a*" (where [[ takes it literally). That has also to do with how [ can be an external program and receives i...