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Swift - How to convert String to Double
I'm trying to write a BMI program in swift language.
And I got this problem: how to convert a String to a Double?
29 Answer...
change type of input field with jQuery
This is supposed to change the #password input field (with id="password" ) that is of type password to a normal text field, and then fill in the text “Password”.
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How to extract the first two characters of a string in shell scripting?
For example, given:
14 Answers
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How to create a fixed-size array of objects
In Swift, I am trying to create an array of 64 SKSpriteNode. I want first to initialize it empty, then I would put Sprites in the first 16 cells, and the last 16 cells (simulating an chess game).
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Pointer arithmetic for void pointer in C
When a pointer to a particular type (say int , char , float , ..) is incremented, its value is increased by the size of that data type. If a void pointer which points to data of size x is incremented, how does it get to point x bytes ahead? How does the compiler know to add x to value of ...
What is the meaning of symbol $ in jQuery?
What does the $ sign in jQuery stand for?
11 Answers
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Reading a huge .csv file
I'm currently trying to read data from .csv files in Python 2.7 with up to 1 million rows, and 200 columns (files range from 100mb to 1.6gb). I can do this (very slowly) for the files with under 300,000 rows, but once I go above that I get memory errors. My code looks like this:
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Rails: Is there a rails trick to adding commas to large numbers?
Is there a way to have rails print out a number with commas in it?
14 Answers
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How to check if all list items have the same value and return it, or return an “otherValue” if they
If all the items in a list have the same value, then I need to use that value, otherwise I need to use an “otherValue”. I can’t think of a simple and clear way of doing this.
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Difference between a View's Padding and Margin
What is the difference between a View's Margin and Padding?
14 Answers
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