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Java Map equivalent in C#
...An efficient way to test/get values is TryGetValue (thanx to Earwicker):
if (otherExample.TryGetValue("key", out value))
{
otherExample["key"] = value + 1;
}
With this method you can fast and exception-less get values (if present).
Resources:
Dictionary-Keys
Try Get Value
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Synchronise ScrollView scroll positions - android
...oldx, int oldy) {
super.onScrollChanged(x, y, oldx, oldy);
if(scrollViewListener != null) {
scrollViewListener.onScrollChanged(this, x, y, oldx, oldy);
}
}
}
And we should specify this new ObservableScrollView class in the layout, instead of the existing Sc...
Difference between Key, Primary Key, Unique Key and Index in MySQL
...imary key is a column, or a combination of columns, that can uniquely identify a row. It is a special case of unique key. A table can have at most one primary key, but more than one unique key. When you specify a unique key on a column, no two distinct rows in a table can have the same value.
Also ...
How to completely remove a dialog on close
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If you are using a div from the DOM, so not dynamically created, use .empty(). Then you can reuse it, if you fill the contents again offcourse.
– KoalaBear
Jul 15 '13 at 21:14
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Changing Jenkins build number
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If you have access to the script console (Manage Jenkins -> Script Console), then you can do this following:
Jenkins.instance.getItemByFullName("YourJobName").updateNextBuildNumber(45)
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How to trim white spaces of array values in php
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What happens if one of the fruits is an array of f.e. Exotic Fruits?
– Halfacht
Jun 21 '18 at 13:36
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How do I calculate the normal vector of a line segment?
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if we define dx=x2-x1 and dy=y2-y1, then the normals are (-dy, dx) and (dy, -dx).
Note that no division is required, and so you're not risking dividing by zero.
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How to see which plugins are making Vim slow?
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If it's not clear, the resulting profile.log is a file in your Vim session's current directory.
– Micah Smith
May 10 '16 at 23:13
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Programmatically fire button click event?
...nswer, but more flexible as it'll keep track of the buttons actual actions if you change them or add more than one.
[button sendActionsForControlEvents:UIControlEventTouchUpInside];
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Unnecessary curly braces in C++?
... can hold on to some shared resource for a shorter duration than you would if you grabbed it at the start of the method.
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