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What do
...e it with a Foo containing something other than a String:
scala> Foo(123).getStringLength
<console>:9: error: could not find implicit value for parameter evidence: =:=[Int,String]
You can read that error as "could not find evidence that Int == String"... that's as it should be! getString...
Show and hide a View with a slide up/down animation
...
With the new animation API that was introduced in Android 3.0 (Honeycomb) it is very simple to create such animations.
Sliding a View down by a distance:
view.animate().translationY(distance);
You can later slide the View back to its original position like this:
view.animate()....
How to find keys of a hash?
...bject.keys performing this operation:
var obj = { "a" : 1, "b" : 2, "c" : 3};
alert(Object.keys(obj)); // will output ["a", "b", "c"]
Compatibility details can be found here.
On the Mozilla site there is also a snippet for backward compatibility:
if(!Object.keys) Object.keys = function(o){
...
'console' is undefined error for Internet Explorer
...
379
Try
if (!window.console) console = ...
An undefined variable cannot be referred directly. H...
Why do Python's math.ceil() and math.floor() operations return floats instead of integers?
...integers.
Consider: If floor() returned an integer, what should floor(1.0e30) return?
Now, while Python's integers are now arbitrary precision, it wasn't always this way. The standard library functions are thin wrappers around the equivalent C library functions.
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What does ON [PRIMARY] mean?
...
keuleJ
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answered May 9 '10 at 16:00
blowdartblowdart
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Jquery to change form action
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EmCoEmCo
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Assigning default value while creating migration file
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edited May 22 '17 at 22:36
typeoneerror
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Passing parameters in rails redirect_to
...them to the options:
redirect_to controller: 'thing', action: 'edit', id: 3, something: 'else'
Would yield /thing/3/edit?something=else
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Finding a substring within a list in Python [duplicate]
Example list: mylist = ['abc123', 'def456', 'ghi789']
5 Answers
5
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