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How to loop through an array containing objects and access their properties
I want to cycle through the objects contained in an array and change the properties of each one. If I do this:
15 Answers
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I'm getting Key error in python
...he set of
existing keys.
For example:
>>> mydict = {'a':'1','b':'2'}
>>> mydict['a']
'1'
>>> mydict['c']
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
KeyError: 'c'
>>>
So, try to print the content of meta_entry and ch...
php中json_decode()和json_encode()的使用方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...字符串进行编码
说明：
mixed json_decode ( string $json [, bool $assoc ] )
接受一个 JSON 格式的字符串并且把它转换为 PHP 变量
参数：
json
待解码的 json string 格式的字符串。
assoc
当该参数为 TRUE 时，将返回 array 而非 object 。 ...
Git error on git pull (unable to update local ref)
I only have branch master and im getting this error every time i try to "git pull":
18 Answers
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super() fails with error: TypeError “argument 1 must be type, not classobj” when parent does not inh
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Your problem is that class B is not declared as a "new-style" class. Change it like so:
class B(object):
and it will work.
super() and all subclass/superclass stuff only works with new-style classes. I recommend you get in the ...
How to calculate date difference in JavaScript?
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Assuming you have two Date objects, you can just subtract them to get the difference in milliseconds:
var difference = date2 - date1;
From there, you can use simple arithmetic to derive the other values.
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Enum “Inheritance”
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This is not possible. Enums cannot inherit from other enums. In fact all enums must actually inherit from System.Enum. C# allows syntax to change the underlying representation of the enum values which looks like inheritance, but in actualit...
How to get just the parent directory name of a specific file
How to get ddd from the path name where the test.java resides.
10 Answers
10
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Removing duplicate rows in vi?
I have a text file that contains a long list of entries (one on each line). Some of these are duplicates, and I would like to know if it is possible (and if so, how) to remove any duplicates. I am interested in doing this from within vi/vim, if possible.
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Sort points in clockwise order?
...unction to end up with something looking rather "solid", as convex as possible with no lines intersecting.
5 Answers
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