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In pure functional languages, is there an algorithm to get the inverse function?
...n algorithm to get the inverse of a function, (edit) when it is bijective? And is there a specific way to program your function so it is?
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Change values while iterating
... prints you completely different memory locations for the value from range and the actual
value in the slice:
0xf84000f010 vs. 0x7f095ed0bf68
0xf84000f014 vs. 0x7f095ed0bf68
0xf84000f018 vs. 0x7f095ed0bf68
So the only thing you can do is to either use pointers or the index, as already proposed ...
When is JavaScript's eval() not evil?
... (for spreadsheet-like functionality). Having parsed the formula I could convert it into JavaScript and run eval() on it to yield the result.
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Replace specific characters within strings
...nd information in other answers/comments which you find useful and like to convert to an answer, you could at least provide some attribution to show where did you get the information from / make the answer a Comminuty Wiki instead of just making it as your own.
– David Arenburg...
Concatenate two string literals
..., for the null terminator). When you use an array in most contexts, it is converted into a pointer to its initial element.
So, when you try to do "Hello" + ",world", what you're really trying to do is add two const char*s together, which isn't possible (what would it mean to add two pointers tog...
Add unique constraint to combination of two columns
I have a table and, somehow, the same person got into my Person table twice. Right now, the primary key is just an autonumber but there are two other fields that exist that I want to force to be unique.
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Maximum on http header values?
...it? If not, is this something that's server specific or is the accepted standard to allow headers of any size?
5 Answers
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How to remove last n characters from every element in the R vector
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@LucasSeveryn If you want to convert character time representations to dates taking into account time zones, please edit that into your question. Likely there are better answers that will get you directly to your desired results (such as strptime).
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Ember.js or Backbone.js for Restful backend [closed]
...e patterns, and complex state management. I went through the experience of converting a legacy app over to Backbone and had to do exactly what you listed. We needed to integrate Marionette as well as write plenty of glue code for things like pre/post route filtering, memory leak mitigation, and bett...
error: Unable to find vcvarsall.bat
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You can also wheel convert ....exe these installers and then install them with pip whenever you like.
– Zooba
Sep 29 '14 at 22:27
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