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How to add an object to an array
How can I add an object to an array (in javascript or jquery)?
For example, what is the problem with this code?
13 Answ...
to remove first and last element in array
How to remove first and last element in an array?
12 Answers
12
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Slicing of a NumPy 2d array, or how do I extract an mxm submatrix from an nxn array (n>m)?
I want to slice a NumPy nxn array. I want to extract an arbitrary selection of m rows and columns of that array (i.e. without any pattern in the numbers of rows/columns), making it a new, mxm array. For this example let us say the array is 4x4 and I want to extract a 2x2 array from it.
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What is the “right” way to iterate through an array in Ruby?
... its warts, is pretty good on this count. There's no difference between an array and a hash (maybe I'm naive, but this seems obviously right to me), and to iterate through either you just do
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Looping through array and removing items, without breaking for loop
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The array is being re-indexed when you do a .splice(), which means you'll skip over an index when one is removed, and your cached .length is obsolete.
To fix it, you'd either need to decrement i after a .splice(), or simply iter...
Any shortcut to initialize all array elements to zero?
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A default value of 0 for arrays of integral types is guaranteed by the language spec:
Each class variable, instance variable, or array component is initialized with a default value when it is created (§15.9, §15.10) [...] For type int, the defa...
Are arrays passed by value or passed by reference in Java? [duplicate]
Arrays are not a primitive type in Java, but they are not objects either , so are they passed by value or by reference? Does it depend on what the array contains, for example references or a primitive type?
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How to sort an array by a date property
Say I have an array of a few objects:
17 Answers
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Ruby - test for array
...kind_of().
>> s = "something"
=> "something"
>> s.kind_of?(Array)
=> false
>> s = ["something", "else"]
=> ["something", "else"]
>> s.kind_of?(Array)
=> true
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PHP Array to CSV
I'm trying to convert an array of products into a CSV file, but it doesn't seem to be going to plan. The CSV file is one long line, here is my code:
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