addAndConcat (DWL)

%dw 2.0
output application/json

var a1 = [2,3,5,7,11]
var r1 = 2 to 11
var o1 = {one:1,two:2,three:3}

---
{
//	digits: a1,
	elements: o1,
//	moreDigits: a1 + r1, // r1 added as final element of result
//	flatDigits: a1 ++ r1, // elements from r1 appended to a1
//	arrayAndObject: a1 + o1, // o1 becomes final element of result
//	objectAndArray: o1 + a1, // error, you can't do that
//	objectWithNewArray: o1 ++ {stuff:a1},
//	alsoWithNewArray: o1 ++ stuff2: a1, // same as last line
//	concatObjects: o1 ++ o1 ++ {three:3,four:4},
//	filterObjects: o1 ++ o1 - "two", // subtraction before concatenation
//	sequencedFilter: (o1 ++ o1) - "two",
//	appendToArray: a1 << 100, // new append operator
//	prependToArray: 100 >> a1, // can you say push?
//	bigAppend: a1 << r1, // acts like the addition operator
	subtractElements: o1 - "two", // removes element with this key
	removeElement: o1 -- {two:2,one:1,three:7}, // removes all kvps that exist
	maskElements: o1 -- ["three","one"], // removes all elements with these keys
	removeByReference: o1 ++ o1 - "two",
	alsoRemove: (o1 ++ o1) - "two", // gets 'em all
}