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Multiple Updates in MySQL
...'s possible - you can use INSERT ... ON DUPLICATE KEY UPDATE.
Using your example:
INSERT INTO table (id,Col1,Col2) VALUES (1,1,1),(2,2,3),(3,9,3),(4,10,12)
ON DUPLICATE KEY UPDATE Col1=VALUES(Col1),Col2=VALUES(Col2);
shar...
How to define hash tables in Bash?
...the equivalent of Python dictionaries but in Bash (should work across OS X and Linux).
15 Answers
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What is the “reactor” in Maven?
... can manipulate the maven reactor and that the reactor is a plugin. What exactly is the reactor?
2 Answers
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What are your favorite extension methods for C#? (codeplex.com/extensionoverflow)
Let's make a list of answers where you post your excellent and favorite extension methods .
150 Answers
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Animate the transition between fragments
...CustomAnimations as well as FragmentTransaction.setTransition.
Here's an example on using setCustomAnimations from ApiDemos' FragmentHideShow.java:
ft.setCustomAnimations(android.R.animator.fade_in, android.R.animator.fade_out);
and here's the relevant animator XML from res/animator/fade_in.xml:...
How to get the concrete class name as a string? [duplicate]
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instance.__class__.__name__
example:
>>> class A():
pass
>>> a = A()
>>> a.__class__.__name__
'A'
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Sorting dictionary keys in python [duplicate]
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my_list = sorted(dict.items(), key=lambda x: x[1])
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What's the use of do while(0) when we define a macro? [duplicate]
I'm reading the linux kernel and I found many macros like this:
2 Answers
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Ruby array to string conversion
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how to revert this?
– zx1986
Jan 19 '17 at 4:49
what do you mean revert @zx1986
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get an element's id
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Yes you can just use the .id property of the dom element, for example:
myDOMElement.id
Or, something like this:
var inputs = document.getElementsByTagName("input");
for (var i = 0; i < inputs.length; i++) {
alert(inputs[i].id);
}
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