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Most efficient way to prepend a value to an array
Assuming I have an array that has a size of N (where N > 0 ), is there a more efficient way of prepending to the array that would not require O(N + 1) steps?
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Checking for empty arrays: count vs empty
This question on ' How to tell if a PHP array is empty ' had me thinking of this question
12 Answers
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Are negative array indexes allowed in C?
... you don't have to dereference the pointer to get UB. Merely computing somearray-2 is undefined unless the result is in the range from the start of somearray to 1 past its end.
– RBerteig
Aug 13 '10 at 9:12
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ASP.Net MVC: How to display a byte array image from model
I've a model with a byte array image file that I want to show on the page.
10 Answers
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How to make sure that string is valid JSON using JSON.NET
... (strInput.StartsWith("[") && strInput.EndsWith("]"))) //For array
{
try
{
var obj = JToken.Parse(strInput);
return true;
}
catch (JsonReaderException jex)
{
//Exception in parsing json
Console....
Difference between int[] array and int array[]
...tly been thinking about the difference between the two ways of defining an array:
25 Answers
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How to determine if one array contains all elements of another array
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This only works for arrays that are sets, not for arrays with duplicates
– Chris
Nov 25 '12 at 17:58
3
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Fastest sort of fixed length 6 int array
...umbled upon an interesting sub-problem. What is the fastest way to sort an array of 6 integers?
23 Answers
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How to avoid long nesting of asynchronous functions in Node.js
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You could use this trick with an array rather than nested functions or a module.
Far easier on the eyes.
var fs = require("fs");
var chain = [
function() {
console.log("step1");
fs.stat("f1.js",chain.shift());
},
function(err, ...
What is a “callback” in C and how are they implemented?
...'re implemented using function pointers. Here's an example:
void populate_array(int *array, size_t arraySize, int (*getNextValue)(void))
{
for (size_t i=0; i<arraySize; i++)
array[i] = getNextValue();
}
int getNextRandomValue(void)
{
return rand();
}
int main(void)
{
int my...