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How do I parse JSON with Objective-C?
...m new to iPhone. Can anyone tell me the steps to follow to parse this data and get the activity details, first name, and last name?
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Python `if x is not None` or `if not x is None`?
...he if not x is None version to be more clear, but Google's style guide and PEP-8 both use if x is not None . Is there any minor performance difference (I'm assuming not), and is there any case where one really doesn't fit (making the other a clear winner for my convention)?*
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Regular expression for matching latitude/longitude coordinates?
...ates. For matching a double-precision number I've used (\-?\d+(\.\d+)?) , and tried to combine that into a single expression:
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How can I increment a char?
I'm new to Python, coming from Java and C. How can I increment a char? In Java or C, chars and ints are practically interchangeable, and in certain loops, it's very useful to me to be able to do increment chars, and index arrays by chars.
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ToList()— does it create a new list?
...en the new list would contain copies of the elements in the original list, and updating a property of an element in the new list would not affect the equivalent element in the original list.)
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add column to mysql table if it does not exist
My research and experiments haven't yielded an answer yet, so I am hoping for some help.
16 Answers
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Java: parse int value from a char
...about getNumericValue(char) is that it also works with strings like "el٥" and "el५" where ٥ and ५ are the digits 5 in Eastern Arabic and Hindi/Sanskrit respectively.
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What is the difference between String.slice and String.substring?
...xactly like substr() in Firefox. This behavior is observed in both Firefox and IE.
If stop is negative: sets stop to: string.length – Math.abs(stop) (original value), except bounded at 0 (thus, Math.max(0, string.length + stop)) as covered in the ECMA specification.
Source: Rudimentary Art of Pr...
How to get first character of string?
I have a string, and I need to get its first character.
16 Answers
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Remove padding from columns in Bootstrap 3
...umn encasing another column. Afterall, .row doesn't have the extra margins and padding that a col-md-12 would bring and also discounts the space that a column would introduce with negative left & right margins.
<div class="container">
<div class="row">
<h2>OntoExp...