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What is the opposite of evt.preventDefault();
...rovided by another comments and answers:
How to unbind a listener that is calling event.preventDefault() (using jQuery)?
How to reenable event.preventDefault?
Note that the second one has been accepted with an example solution, given by redsquare (posted here for a direct solution in case this is...
ORA-00054: resource busy and acquire with NOWAIT specified or timeout expired
...fix the problem.
LOCK TABLE 'TABLE NAME'; -- you will 'wait' (developers call this hanging). until the session with the open transaction, commits. This is a queue. so there may be several sessions ahead of you. but you will NOT error out.
Execute DDL. Your DDL will then run a lock with the NO WAI...
Getting the ID of the element that fired an event
...that fired the function.
'this' is a DOM element when you are inside of a callback function (in the context of jQuery), for example, being called by the click, each, bind, etc. methods.
Here is where you can learn more: http://remysharp.com/2007/04/12/jquerys-this-demystified/
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How to create GUID / UUID?
...n (4 = "random"). The "y" marks where the uuid variant (field layout, basically) needs to be embedded. See sections 4.1.1 and 4.1.3 of ietf.org/rfc/rfc4122.txt for more info.
– broofa
Nov 27 '12 at 22:13
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How do you log all events fired by an element in jQuery?
... You can monitor all events with this hook (in windows programming this is called a hook). This hook does not affects the operation of your software/program.
In the console log you can see something like this:
Explanation of what you see:
In the console log you will see all events you select (...
JavaScript validation for empty input field
I have this input field
<input name="question"/> I want to call IsEmpty function when submit clicking submit button.
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Get root view from current activity
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You can just call findViewById(R.id.imageView1); on the activity if you want the specific view.
– RobCo
Apr 21 '17 at 15:55
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What is REST? Slightly confused [closed]
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REST is a software design pattern typically used for web applications. In layman's terms this means that it is a commonly used idea used in many different projects. It stands for REpresentational State Transfer. The basic idea of REST is treating objects on the s...
Android, canvas: How do I clear (delete contents of) a canvas (= bitmaps), living in a surfaceView?
...(or redraw) the WHOLE canvas for a new layout (= try at the game) ?
Just call Canvas.drawColor(Color.BLACK), or whatever color you want to clear your Canvas with.
And: how can I update just a part of the screen ?
There is no such method that just update a "part of the screen" since Android O...
How do I delete rows in a data frame?
...ent of a set is given by the '-' operator.
So, assuming the data.frame is called myData:
myData[-c(2, 4, 6), ] # notice the -
Of course, don't forget to "reassign" myData if you wanted to drop those rows entirely---otherwise, R just prints the results.
myData <- myData[-c(2, 4, 6), ]
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