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DatabaseError: current transaction is aborted, commands ignored until end of transaction block?
I got a lot of errors with the message :
19 Answers
19
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“A lambda expression with a statement body cannot be converted to an expression tree”
In using the EntityFramework , I get the error " A lambda expression with a statement body cannot be converted to an expression tree " when trying to compile the following code:
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Postgres: clear entire database before re-creating / re-populating from bash script
I'm writing a shell script (will become a cronjob) that will:
7 Answers
7
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psql: FATAL: Peer authentication failed for user “dev”
when i create a new user, but it cannot login the database.
I do that like this:
12 Answers
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How can I make a time delay in Python? [duplicate]
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edited Jun 14 '18 at 21:04
Peter Mortensen
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What's the @ in front of a string in C#?
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It marks the string as a verbatim string literal - anything in the string that would normally be interpreted as an escape sequence is ignored.
So "C:\\Users\\Rich" is the same as @"C:\Users\Rich"
There is one exception: an ...
jQuery trigger file input
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This is due to a security restriction.
I found out that the security restriction is only when the <input type="file"/> is set to display:none; or is visbilty:hidden.
So i tried positioning it outside the viewport by setting position:absolu...
CSV in Python adding an extra carriage return, on Windows
It generates a file, test.csv , with an extra \r at each row, like so:
7 Answers
7
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How to get child element by class name?
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Use doc.childNodes to iterate through each span, and then filter the one whose className equals 4:
var doc = document.getElementById("test");
var notes = null;
for (var i = 0; i < doc.childNodes.length; i++) {
if (doc.childNodes[i].classNa...
How to override the properties of a CSS class using another CSS class
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.left { background: blue }
e.g. any of the following would override it:
a.background-none { background: none; }
body .background-none { background: none; }
.background-none { background: none !important; }
The first two “win” by selector specificity; the third one wins by !important, a...