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for

Controlling the flow of a script

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User Guide > General > MEL and Expressions > Controlling the flow of a script > 

for-in

The most common use of a for loop is to iterate over every element of an array. MEL has a special form of the for loop that lets you do this very easily.

The for-in loop has the form:

for (array-element in array) {

	statement;

	statement;

	...

}

string $carType[3] = {"Porsche", "Ferrari", "BMW"};

string $car;

for ($car in $carType) {

	print("I want a new ");

	print($car + ".\n");

}

This prints the following lines in the Script Editor:

I want a new Porsche.

I want a new Ferrari.

I want a new BMW.

The loop executes three times, once for each array element in $carType.