foreach

Loops once for each element in an array or list.

Syntax

foreach(loop_var = matr_expr)

Input

loop_var: A variable.
matr_expr: An array or a list of elements.

Example

Template:

{num = 0}
{gmat = {10, 20, 30, 40}}
{foreach(elem = gmat); num++}
   Element {num}: {elem}
{endloop}

Output:

Element 1: 10
Element 2: 20
Element 3: 30
Element 4: 40

Comments

A foreach loop consists of a foreach statement, a list of instructions, and an endloop statement. The instructions between foreach and endloop are carried out for each element in matr_expr. When the foreach loop begins, loop_var equals the first element in matr_expr. Each time through the loop, loop_var takes on the value of the next element in matr_expr. When the last element is reached, the loop ends and the statement following the endloop statement is executed.

Every foreach loop must be terminated with an endloop statement.