List methods

Operators

• +/or: takes the union of both lists (with coercion to list if necessary)
• and: takes the intersection of both lists
• /: takes all elements in the first list that aren't in the second list

Methods

• decide: given an array with an even number of elements (with odd elements containing a boolean value or an expression that evaluates to boolean), return the even element that corresponds to the first true value seen. If that element is a code object, it runs that object. Example:

var i = 3;
[i < 3, { "i is less than 3"|print; },
 i > 3, { "i is greater than 3"|print; },
 i == 3, { "i is equal to 3"|print; }]|decide;

decide returns false if none of the conditions are true.

• string: coerces the list to string
• print: outputs the string value of the list to standard output.
• sum: outputs the sum of every number in the list
• product: outputs the product of every number in the list (i.e. element 1 * element 2 * ...)
• length: returns number of elements in list