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How does the Comma Operator work

...itializers for symbol tables. Thus, it makes the following syntax possible and meaningful: keywords = "and", "or", "not", "xor"; Notice that due to operator precedence, the code is (intentionally!) identical to (((keywords = "and"), "or"), "not"), "xor"; That is, the first operator called is k...
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Do I need to explicitly call the base virtual destructor?

... This question might be related and help questions/15265106/c-a-missing-vtable-error. – Paul-Sebastian Manole Dec 20 '14 at 20:16 ...
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Difference between sh and bash

When writing shell programs, we often use /bin/sh and /bin/bash . I usually use bash , but I don't know what's the difference between them. ...
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Is it possible to break a long line to multiple lines in Python [duplicate]

...by using Python's implied line continuation inside parentheses, brackets and braces. If necessary, you can add an extra pair of parentheses around an expression, but sometimes using a backslash looks better. Make sure to indent the continued line appropriately. Example of implicit line...
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How to preventDefault on anchor tags?

...ATE: I've since changed my mind on this solution. After more development and time spent working on this, I believe a better solution to this problem is to do the following: <a ng-click="myFunction()">Click Here</a> And then update your css to have an extra rule: a[ng-click]{ cu...
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Rename Pandas DataFrame Index

...csv file without header, with a DateTime index. I want to rename the index and column name, but with df.rename() only the column name is renamed. Bug? I'm on version 0.12.0 ...
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In MySQL, how to copy the content of one table to another table within the same database?

... If table1 is large and you don't want to lock it for the duration of the copy process, you can do a dump-and-load instead: CREATE TABLE table2 LIKE table1; SELECT * INTO OUTFILE '/tmp/table1.txt' FROM table1; LOAD DATA INFILE '/tmp/table1.txt...
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What does the “assert” keyword do? [duplicate]

...ed, execution of the assertion causes evaluation of the boolean expression and an error is reported if the expression evaluates to false. If the assertion is disabled, execution of the assertion has no effect whatsoever. Where "enabled or disabled" is controlled with the -ea switch and "An error i...
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Calculating sum of repeated elements in AngularJS ng-repeat

...repeat . For each element in the array, it shows the item name, its amount and the subtotal ( product.price * product.quantity ). ...
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Sending an Intent to browser to open specific URL [duplicate]

...ng how to fire up an Intent to the phone's browser to open an specific URL and display it. 10 Answers ...