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Javascript equivalent of Python's zip function

... efficient way of merging [1,2] and [7,8] into [[1,7], [2,8]] Note: the base types such as false and undefined do not posess a prototypal object-hierarchy and thus do not expose a toString function. Hence these are shown as empty in the output. As parseInt's second argument is the base/number rad...
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showDialog deprecated. What's the alternative?

.... This fragment contains a Dialog object, which it displays as appropriate based on the fragment's state. Control of the dialog (deciding when to show, hide, dismiss it) should be done through the API here, not with direct calls on the dialog. Here is a nice discussion Android DialogFragment vs Dial...
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If table exists drop table then create it, if it does not exist just create it

...plexity increases and locking functions in MySQL aren't safe for statement-based replication. If the table data should survive table definition upgrade... For general case it's far more complex story about comparing table definitions to find out differences and produce proper ALTER ... statement, w...
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Rails: Using build with a has_one association in rails

...ent for has_one and has_many associations. class User < ActiveRecord::Base has_one :profile has_many :messages end The build syntax for has_many association: user.messages.build The build syntax for has_one association: user.build_profile # this will work user.profile.build # this ...
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JavaScript regex multiline flag doesn't work

... [\s\S] did not work for me in nodejs 6.11.3. Based on the RegExp documentation, it says to use [^] which does work for me. (The dot, the decimal point) matches any single character except line terminators: \n, \r, \u2028 or \u2029. Inside a character set, t...
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multiple definition of template specialization when using different objects

... @Justin Liang, your class based header code will still violate the ODR if included in multiple files, unless the function definitions are inside the body of the class. – haripkannan Jun 11 '15 at 7:36 ...
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Git - working on wrong branch - how to copy changes to existing topic branch

..., if branch123 doesn't exist yet, you can do git checkout -b branch123 Based on what I found here. share | improve this answer | follow | ...
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How to frame two for loops in list comprehension python

...member this is that the order of for loop inside the list comprehension is based on the order in which they appear in traditional loop approach. Outer most loop comes first, and then the inner loops subsequently. So, the equivalent list comprehension would be: [entry for tag in tags for entry in e...
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Position Relative vs Absolute?

...d has a position: relative style placed on it, its position will be offset based on its current location-- not from the original sides of the view port. Paragraph 1. Paragraph 2. Paragraph 3. In the above example, the third paragraph will be positioned 3em from the left side of the container elem...
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How can I get all constants of a type by reflection?

...BindingFlags.Static | // This tells it to get the fields from all base types as well BindingFlags.FlattenHierarchy); // Go through the list and only pick out the constants foreach(FieldInfo fi in fieldInfos) // IsLiteral determines if its value is written at ...