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array

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(general) Array

A way of storing multiple values in memory that can be accessed by index.

For example, if you want to store 5 values, you can each give them a different variable name:

PSEUDOCODE EXAMPLE
  value1 = 1
  value2 = 2
  value3 = 3
  value4 = 4
  value5 = 5

If you want to multiply all values, you will need to call all 5 variable names again:

PSEUDOCODE EXAMPLE
  value1 = value1 * 2
  value2 = value2 * 2
  value3 = value3 * 2
  value4 = value4 * 2
  value5 = value5 * 2

Doing much more math on them is cumbersome. An array can store these values and access them by their index in the array. This way, you can use a loop to do math with these values:

PSEUDOCODE EXAMPLE
  MyArray[5] = 1,2,3,4,5
  for index = 1 to 5 
    MyArray[index] = MyArray[index] * 2

Arrays in specific languages

• C
• C++
• NQC
• PHP
• other languages

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