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What is the difference between async.waterfall and async.series
...o the next, then when done will call the main callback, passing its error, if an error happens.
The difference is that async.series(), once the series have finished, will pass all the results to the main callback. async.waterfall() will pass to the main callback only the result of the last function...
Android: View.setID(int id) programmatically - how to avoid ID conflicts?
...
According to View documentation
The identifier does not have to be unique in this view's hierarchy. The identifier should be a positive number.
So you can use any positive integer you like, but in this case there can be some views with equivalent id's. If you want...
Tools to search for strings inside files without indexing [closed]
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It is old, it crashed for me too. Even if not perfect for some goals grepWin is better imoh
– Paolo
Oct 28 '13 at 10:07
9
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Using lambda expressions for event handlers
...ick -= (o, i) =>
{
//snip
}
It will probably try to remove a different lambda, leaving the original one there. So the lesson is that it's fine unless you also want to be able to remove the handler.
share
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Link to reload current page
...n also use .. to refer to the folder above the current path, for instance, if you have this file structure:
page1.html
folder1
page2.html
You can then in page2.html write:
<a href="../page1.html">link to page 1</a>
EDIT:
I'm not sure if the behaviour has changed or if it was a...
Generate full SQL script from EF 5 Code First Migrations
...d -To parameter to generate an update script to update a database to a specific version.
Script-Migration -From 20190101011200_Initial-Migration -To 20190101021200_Migration-2
https://docs.microsoft.com/en-us/ef/core/managing-schemas/migrations/#generate-sql-scripts
There are several options to th...
What is a proper naming convention for MySQL FKs?
...ySQL, there is no need to give a symbolic name to foreign key constraints. If a name is not given, InnoDB creates a unique name automatically.
In any case, this is the convention that I use:
fk_[referencing table name]_[referenced table name]_[referencing field name]
Example:
CREATE TABLE users...
How to convert JSON string to array
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If you pass the JSON in your post to json_decode, it will fail. Valid JSON strings have quoted keys:
json_decode('{foo:"bar"}'); // this fails
json_decode('{"foo":"bar"}', true); // returns array("foo" => "bar")
j...
Send Email Intent
...ail app. Let the user choose his favorite email app. Don't constrain him.
If you use ACTION_SENDTO, putExtra does not work to add subject and text to the intent. Use Uri to add the subject and body text.
EDIT:
We can use message/rfc822 instead of "text/plain" as the MIME type. However, that is not...
What's an object file in C?
...e not yet found an explanation on what an object file is. What's the real difference between any other compiled file and an object file?
I would be glad if someone could explain in human language.
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