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functions.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Function Tests</title>
<link rel="stylesheet" href="https://get.mavo.io/mavo.css" />
<link rel="stylesheet" href="style.css" />
<style>
td {
font: bold 100%/1.5 Consolas, Monaco, monospace;
}
table.reftest td:first-child {
flex: 2;
}
</style>
<script src="https://get.mavo.io/mavo.js"></script>
<script src="mavotest.js"></script>
</head>
<body>
<h1>Function Tests</h1>
<p>These tests test whether Mavo functions produce correct results.
Remember, MavoScript doesn't support {} for object literals, either use <code>group()</code> or <code>$fn.</code> in front of every function you call.</p>
<section>
<h1>Basic Operators</h1>
<table class="reftest" data-test="expressionEvaluation" data-columns="3">
<tr>
<td>addition("1", 1)</td>
<td>2</td>
</tr>
<tr>
<td>addition("", "")</td>
<td>0</td>
</tr>
<tr>
<td>addition("3", "5")</td>
<td>8</td>
</tr>
<tr>
<td>addition([1, 2, 3])</td>
<td>6</td>
</tr>
<tr>
<td>addition([1, 2, 3], [4, 5])</td>
<td>[5, 7, 3]</td>
</tr>
<tr>
<td>subtract(1, 2)</td>
<td>-1</td>
</tr>
<tr>
<td>subtract(1, -2)</td>
<td>3</td>
</tr>
<tr>
<td>subtract(1, 0)</td>
<td>1</td>
</tr>
<tr>
<td>minus(1)</td>
<td>-1</td>
</tr>
<tr>
<td>divide(4, 2)</td>
<td>2</td>
</tr>
<tr>
<td>divide([4,2], [2])</td>
<td>[2,2]</td>
</tr>
<tr>
<td>divide([4], [2,2])</td>
<td>[2,2]</td>
</tr>
<tr>
<td>and(0, true)</td>
<td>0</td>
</tr>
<tr>
<td>and([0, 1, 2, 3], [true, true, false])</td>
<td>[0, true, false, false]</td>
</tr>
<tr>
<td>and([true, true, false], [0, 1, 2, 3])</td>
<td>[0, 1, false, false]</td>
</tr>
<tr>
<td>or(true, false, false)</td>
<td>true</td>
</tr>
<tr>
<td>or(false, false, false)</td>
<td>false</td>
</tr>
<tr>
<td>eq(3, 3, 3, 3)</td>
<td>true</td>
</tr>
<tr>
<td>eq("l","l")</td>
<td>true</td>
</tr>
<tr>
<td>gt(3, 2, 1)</td>
<td>true</td>
</tr>
<tr>
<td>lt(1, 2, 3)</td>
<td>true</td>
</tr>
<tr>
<td>lt(1, 2, 1)</td>
<td>false</td>
</tr>
<tr>
<td>gt(3, 2, 3)</td>
<td>false</td>
</tr>
<tr>
<td>gt("2090-06-13", $now)</td>
<td>true</td>
</tr>
<tr>
<td>gt("1990-06-13", $now)</td>
<td>false</td>
</tr>
<tr>
<td>neq(2, 2)</td>
<td>false</td>
</tr>
<tr>
<td>neq(foo, bar)</td>
<td>true</td>
</tr>
<tr>
<td>neq(2, 2, 3)</td>
<td>false</td>
</tr>
</table>
</section>
<section>
<h1>Multi-valued Arguments</h1>
<p>Unary Functions</p>
<table class="reftest" data-test="expressionEvaluation" data-columns="3">
<tr>
<td>ordinal([1,2,3,4])</td>
<td>["st","nd","rd","th"]</td>
</tr>
<tr>
<td>len(["foobar", 314])</td>
<td>[6,3]</td>
</tr>
<tr>
<td>idify(["Foo bar", "BarBaz"])</td>
<td>["foo-bar","barbaz"]</td>
</tr>
<tr>
<td>readable(["foo-bar", "BarBaz"])</td>
<td>["Foo bar","Bar baz"]</td>
</tr>
<tr>
<td>uppercase(["foobar", "bar baz"])</td>
<td>["FOOBAR","BAR BAZ"]</td>
</tr>
<tr>
<td>lowercase(["FOOBAR", "BAR BAZ"])</td>
<td>["foobar","bar baz"]</td>
</tr>
<tr>
<td>filename(["mavo.io/foo.html", "mavo.io/bar?q=baz"])</td>
<td>["foo.html","bar"]</td>
</tr>
</table>
<p>Unary Math Functions</p>
<table class="reftest" data-test="expressionEvaluation" data-columns="3">
<tr>
<td>abs([-2,3])</td>
<td>[2,3]</td>
</tr>
<tr>
<td>floor([3.5,4.9])</td>
<td>[3,4]</td>
</tr>
<tr>
<td>sqrt([16,25])</td>
<td>[4,5]</td>
</tr>
</table>
<p>Binary Functions</p>
<table class="reftest" data-test="expressionEvaluation" data-columns="3">
<tr>
<td>atan2([0,5], [2,5]) * 180 / PI</td>
<td>[0,45]</td>
</tr>
<tr>
<td>atan2([0,5], [2,5,0]) * 180 / PI</td>
<td>[0,45,0]</td>
</tr>
<tr>
<td>atan2([0,5,0], [2,5]) * 180 / PI</td>
<td>[0,45,0]</td>
</tr>
<tr>
<td>pow([2,3], [3,2])</td>
<td>[8,9]</td>
</tr>
<tr>
<td>pow([3], [2,2])</td>
<td>[9,1]</td>
</tr>
<tr>
<td>pow([3,4], [2])</td>
<td>[9,4]</td>
</tr>
<tr>
<td>imul([2,3], [4,5])</td>
<td>[8,15]</td>
</tr>
<tr>
<td>imul([2], [4,5])</td>
<td>[8,5]</td>
</tr>
<tr>
<td>imul([2,3], [4])</td>
<td>[8,3]</td>
</tr>
<tr>
<td>round([5.85, -5.05], 0)</td>
<td>[6,-5]</td>
</tr>
<tr>
<td>round([5.85, -5.05, 6.5], [1, 0])</td>
<td>[5.9,-5,7]</td>
</tr>
<tr>
<td>round([5.85, -5.05], [1, 0, 3])</td>
<td>[5.9,-5,3]</td>
</tr>
<tr>
<td>search([34, "foobar"], [3, bar])</td>
<td>[0,3]</td>
</tr>
<tr>
<td>search([34, "foobar", "baz"], [3, "bar"])</td>
<td>[0,3,-1]</td>
</tr>
<tr>
<td>search([34, "foobar"], [3, bar, "baz"])</td>
<td>[0,3,-1]</td>
</tr>
<tr>
<td>starts([34, "foobar"], [3, bar])</td>
<td>[true,false]</td>
</tr>
<tr>
<td>starts([34, "foobar", "baz"], [3, "bar"])</td>
<td>[true,false,false]</td>
</tr>
<tr>
<td>starts([34, "foobar"], [3, bar, "baz"])</td>
<td>[true,false,false]</td>
</tr>
<tr>
<td>ends([34, "foobar"], [3, bar])</td>
<td>[false,true]</td>
</tr>
<tr>
<td>ends([34, "foobar", "baz"], [3, "bar"])</td>
<td>[false,true,false]</td>
</tr>
<tr>
<td>ends([34, "foobar"], [3, bar, "baz"])</td>
<td>[false,true,false]</td>
</tr>
<tr>
<td>from(["foo.bar", "barbaz"], [".", "b"])</td>
<td>["bar","arbaz"]</td>
</tr>
<tr>
<td>from(["foo.bar", "barbaz", "foobar"], [".", "b"])</td>
<td>["bar","arbaz","foobar"]</td>
</tr>
<tr>
<td>from(["foo.bar", "barbaz"], [".", "b", "foobar"])</td>
<td>["bar","arbaz",""]</td>
</tr>
<tr>
<td>fromlast(["foo.bar", "barbaz"], [".", "b"])</td>
<td>["bar","az"]</td>
</tr>
<tr>
<td>fromlast(["foo.bar", "barbaz", "foobar"], [".", "b"])</td>
<td>["bar","az","foobar"]</td>
</tr>
<tr>
<td>fromlast(["foo.bar", "barbaz"], [".", "b", "foobar"])</td>
<td>["bar","az",""]</td>
</tr>
<tr>
<td>to(["foo.bar", "barbaz"], [".", "a"])</td>
<td>["foo","barb"]</td>
</tr>
<tr>
<td>to(["foo.bar", "barbaz", "foobar"], [".", "a"])</td>
<td>["foo","barb","foobar"]</td>
</tr>
<tr>
<td>to(["foo.bar", "barbaz"], [".", "a", "foobar"])</td>
<td>["foo","barb",""]</td>
</tr>
<tr>
<td>tofirst(["foo.bar", "barbaz"], [".", "a"])</td>
<td>["foo","b"]</td>
</tr>
<tr>
<td>tofirst(["foo.bar", "barbaz", "foobar"], [".", "a"])</td>
<td>["foo","b","foobar"]</td>
</tr>
<tr>
<td>tofirst(["foo.bar", "barbaz"], [".", "a", "foobar"])</td>
<td>["foo","b",""]</td>
</tr>
<tr>
<td>split(["foo.bar", "bar,baz"], [".", ","])</td>
<td>[["foo", "bar"], ["bar", "baz"]]</td>
</tr>
<tr>
<td>split(["foo.bar", "bar.baz"], ".")</td>
<td>[["foo", "bar"], ["bar", "baz"]]</td>
</tr>
<tr>
<td>split(["foo bar", "bar baz"])</td>
<td>[["foo", "bar"], ["bar", "baz"]]</td>
</tr>
</table>
<p>Polynary Functions</p>
<table class="reftest" data-test="expressionEvaluation" data-columns="3">
<tr>
<td>random(1, 1, 1)</td>
<td>1</td>
</tr>
<tr>
<td>random([1,2,3], [1,2,3], 1)</td>
<td>[1,2,3]</td>
</tr>
<tr>
<td>random([1,2], [1,2,0], 1)</td>
<td>[1,2,0]</td>
</tr>
<tr>
<td>between(["foo.bar!baz", "foo!bar!baz"], [".", "!"], "!")</td>
<td>["bar","bar"]</td>
</tr>
<tr>
<td>digits([2, 1], [2, 4], 3.1415)</td>
<td>["03.14", "3.1415"]</td>
</tr>
<tr>
<td>replace(["foobar", "barbaz"], ["oo", "bar"], "aa")</td>
<td>["faabar", "aabaz"]</td>
</tr>
</table>
</section>
<section>
<h1>split()</h1>
<table class="reftest" data-test="expressionEvaluation" data-columns="3">
<tr>
<td>split("afbfc", "f")</td>
<td>["a", "b", "c"]</td>
</tr>
<tr title="Line breaks">
<td>split("a
b", "
")</td>
<td>["a", "b"]</td>
</tr>
</table>
</section>
<section>
<h1>group()</h1>
<table class="reftest" data-test="expressionEvaluation" data-columns="3">
<tr>
<td>group(name: 'Lea', age: 32)</td>
<td>{"name":"Lea","age":32}</td>
</tr>
</table>
</section>
<section>
<h1>list()</h1>
<table class="reftest" data-test="expressionEvaluation" data-columns="3">
<tr>
<td>list(1, 2, 3)</td>
<td>[1, 2, 3]</td>
</tr>
<tr>
<td>list()</td>
<td>[]</td>
</tr>
<tr>
<td>list(0)</td>
<td>[0]</td>
</tr>
<tr title="With arrays">
<td>list([1, 2], [2, 3])</td>
<td>[1, 2, 2, 3]</td>
</tr>
<tr title="With arrays and numbers">
<td>list([1, 2], 2)</td>
<td>[1, 2, 2]</td>
</tr>
<tr title="With 1 array">
<td>list([1, 2])</td>
<td>[1, 2]</td>
</tr>
</table>
</section>
<section>
<h1>Aggregates</h1>
<table class="reftest" data-test="expressionEvaluation" data-columns="3">
<tr>
<td>average()</td>
<td>0</td>
</tr>
<tr>
<td>average(1)</td>
<td>1</td>
</tr>
<tr>
<td>average(null, 1, 2, 3, null, "")</td>
<td>2</td>
</tr>
<tr>
<td>average([null, 1, 2, 3, null, ""])</td>
<td>2</td>
</tr>
<tr>
<td>median()</td>
<td>0</td>
</tr>
<tr>
<td>median(1)</td>
<td>1</td>
</tr>
<tr>
<td>median([1, 2])</td>
<td>1.5</td>
</tr>
<tr>
<td>median([null, 1, 2, 3, null, ""])</td>
<td>2</td>
</tr>
</table>
</section>
<section>
<h1>iff()</h1>
<table class="reftest" data-test="expressionEvaluation" data-columns="3">
<tr>
<td>iff(4, 1, 2)</td>
<td>1</td>
</tr>
<tr>
<td>iff([1, 0], 1, 2)</td>
<td>[1, 2]</td>
</tr>
<tr>
<td>iff([1, 0], [1, 2], [3, 4])</td>
<td>[1, 4]</td>
</tr>
<tr>
<td>iff([true, false, 0, 1], 1, [2, 3])</td>
<td>[1, 3, 3, 1]</td>
</tr>
</table>
</section>
<section>
<h1>Concatenation</h1>
<table class="reftest" data-test="expressionEvaluation" data-columns="3">
<tr>
<td>"yolo" & 2</td>
<td>"yolo2"</td>
</tr>
<tr>
<td>[1, "hello"] & "#"</td>
<td>["1#", "hello#"]</td>
</tr>
<tr>
<td>[1, 2, 3] & "#" & ["a", "b", "c"]</td>
<td>["1#a", "2#b", "3#c"]</td>
</tr>
</table>
</section>
<section>
<h1>get()</h1>
<table class="reftest" data-test="expressionEvaluation" data-columns="3">
<tr>
<td>$fn.get(bar: 4, "bar")</td>
<td>4</td>
</tr>
<tr>
<td>$fn.get(group(), "bar")</td>
<td>null</td>
</tr>
<tr>
<td>$fn.get(null, "bar")</td>
<td>null</td>
</tr>
<tr title="Case insensitive lookup">
<td>$fn.get(group(foo: 1, foO: 2), "FOO")</td>
<td>1</td>
</tr>
<tr title="Case insensitive lookup, priority to correct case">
<td>$fn.get(group(foo: 1, foO: 2), "foO")</td>
<td>2</td>
</tr>
<tr title="undefined">
<td>$fn.get(foo: undefined, "foo")</td>
<td>undefined</td>
</tr>
<tr title="undefined and case insensitive">
<td>$fn.get(group(foo: undefined, foO: 1), "foo")</td>
<td>undefined</td>
</tr>
<tr title="Get collection item by id">
<td>$fn.get([group(id: "foo", name: "fooname"), group(id: "bar", name: "barname")], "id=foo").name</td>
<td>"fooname"</td>
</tr>
<tr title="Get collection item by id">
<td>$fn.get([group(id: "foo", name: "fooname"), group(id: "bar", name: "barname")], "id=bar").name</td>
<td>"barname"</td>
</tr>
<tr title="Get collection item by name">
<td>$fn.get([group(id: "foo", name: "fooname"), group(id: "bar", name: "barname")], "name=fooname")</td>
<td>[{"id":"foo","name":"fooname"}]</td>
</tr>
<tr title="Get collection item property">
<td>$fn.get([group(id: "foo", name: "fooname"), group(id: "bar", name: "barname")], "name")</td>
<td>["fooname", "barname"]</td>
</tr>
<tr title="Get collection item by name and then by property">
<td>$fn.get($fn.get([group(id: "foo", name: "fooname"), group(id: "bar", name: "barname")], "name=barname"), "id")</td>
<td>["bar"]</td>
</tr>
</table>
</section>
<section>
<h1>String slicing</h1>
<table class="reftest" data-test="expressionEvaluation" data-columns="3">
<tr>
<td>from("foo", ".")</td>
<td>""</td>
</tr>
<tr>
<td>from("foo.bar", ".")</td>
<td>"bar"</td>
</tr>
<tr>
<td>from("foo.bar.baz", ".")</td>
<td>"bar.baz"</td>
</tr>
<tr>
<td>fromlast("foo.bar.baz", ".")</td>
<td>"baz"</td>
</tr>
<tr>
<td>to("foo", ".")</td>
<td>""</td>
</tr>
<tr>
<td>to("foo.bar", ".")</td>
<td>"foo"</td>
</tr>
<tr>
<td>to("foo.bar.baz", ".")</td>
<td>"foo.bar"</td>
</tr>
<tr>
<td>tofirst("foo.bar.baz", ".")</td>
<td>"foo"</td>
</tr>
<tr>
<td>between("foo.bar.baz", ".", ".")</td>
<td>"bar"</td>
</tr>
<tr>
<td>between("foo.bar.baz", "#", "$")</td>
<td>""</td>
</tr>
</table>
</section>
<section>
<h1>contains()</h1>
<table class="reftest" data-test="expressionEvaluation" data-columns="3">
<tr>
<td>
$fn.contains(group(name: "Kenneth", work: "MIT", interests: [group(food: "rice", type: "white"), "coding"]), "rice")
</td>
<td>true</td>
</tr>
<tr>
<td>
$fn.contains(["Lea", "Kenneth", "Amy",], "Kenneth")
</td>
<td>[false, true, false]</td>
</tr>
<tr>
<td>
$fn.contains(["Kenneth", "Amy", group(name: "Kenneth")], "Kenneth")
</td>
<td>[true, false, true]</td>
</tr>
<tr>
<td>
$fn.contains(["Kenneth", [6, "Kenneth"], "MIT"], "Kenneth")
</td>
<td>[true, true, false]</td>
</tr>
<tr>
<td>
$fn.contains(group(name: "Kenneth", work: "MIT", interests: [group(food: "rice"), "coding"]), group(food: "rice"))
</td>
<td>true</td>
</tr>
<tr>
<td>
$fn.contains(["Kenneth", "MIT", group(food: "rice", type: "white")], group(food: "rice", type: "white"))
</td>
<td>[false, false, true]</td>
</tr>
<tr>
<td>
$fn.contains("Kenneth", ["Kenneth", "Lea"])
</td>
<td>[true, false]</td>
</tr>
<tr>
<td>
$fn.contains(["Kenneth", "Verou"], ["Kenneth", "Lea"])
</td>
<td>[true, false]</td>
</tr>
<tr>
<td>
$fn.contains(["Kenneth", "Lea", "Amy"], ["Kenneth", "Lea"])
</td>
<td>[true, true, false]</td>
</tr>
<tr>
<td>
contains(["Kenneth", "Lea"], ["Kenneth", "Lea", "Amy"])
</td>
<td>[true, true, false]</td>
</tr>
<tr>
<td>
$fn.contains([["Kenneth", "Lea"], "Amy"], ["Kenneth", "Lea"])
</td>
<td>[true, false]</td>
</tr>
<tr>
<td>
$fn.contains(group(name: "Kenneth", work: "MIT", interest: ["coding", group(food: "rice", quantity: 6)]), ["Kenneth", "rice"])
</td>
<td>[true, true]</td>
</tr>
<tr>
<td>
$fn.contains(["Kenneth", group(food: "rice", quantity: 6), "MIT"], ["Kenneth", "6"])
</td>
<td>[true, true, false]</td>
</tr>
<tr>
<td>
contains(null, null)
</td>
<td>false</td>
</tr>
<tr>
<td>
contains("foo", null)
</td>
<td>false</td>
</tr>
<tr>
<td>
contains(null, "foo")
</td>
<td>false</td>
</tr>
<tr>
<td>
contains()
</td>
<td>false</td>
</tr>
<tr>
<td>
contains("foo")
</td>
<td>false</td>
</tr>
<tr>
<td>contains("0", 0)</td>
<td>true</td>
</tr>
<tr>
<td>
contains([], "foo")
</td>
<td>[]</td>
</tr>
</table>
</section>
<section>
<h1>filter()</h1>
<table class="reftest" data-test="expressionEvaluation" data-columns="3">
<tr title="Scalars">
<td>filter(42, false)</td>
<td>null</td>
</tr>
<tr title="Scalars">
<td>filter(42, true)</td>
<td>42</td>
</tr>
<tr title="Single argument, scalar">
<td>filter(42)</td>
<td>42</td>
</tr>
<tr title="Single argument">
<td>filter([1, 2])</td>
<td>[1, 2]</td>
</tr>
<tr>
<td>filter([1, 2, 3], [false, true, false])</td>
<td>[null, 2, null]</td>
</tr>
<tr>
<td>filter([1, 2, 3], [true, true, false], [false, true, false])</td>
<td>[null, 2, null]</td>
</tr>
<tr title="Filter by scalar">
<td>filter([1, 2, 3, 2], 2)</td>
<td>[null, 2, null, 2]</td>
</tr>
<tr title="More values than filters">
<td>filter([1, 2, 3, 4], [true, false, true])</td>
<td>[1, null, 3, null]</td>
</tr>
<tr title="Fewer values than filters">
<td>filter([1, 2, 3], [true, false, true, true])</td>
<td>[1, null, 3]</td>
</tr>
<tr title="Both scalars and array filters">
<td>filter([1, 2, 3, 4], [true, false, true], 3)</td>
<td>[null, null, 3, null]</td>
</tr>
<tr title="Both scalars and array filters">
<td>filter([1, 2, 3, 4], 3, [true, false, true])</td>
<td>[null, null, 3, null]</td>
</tr>
</table>
</section>
<section>
<h1>has()</h1>
<table class="reftest" data-test="expressionEvaluation" data-columns="3">
<tr>
<td>has(1, [1, 2, 3])</td>
<td>true</td>
</tr>
<tr title="Object as needle">
<td>$fn.has(foo: 1, [foo: 1, 2, 3])</td>
<td>true</td>
</tr>
<tr title="Primitive haystack">
<td>has(1, 1)</td>
<td>true</td>
</tr>
<tr title="Primitive haystack">
<td>has(1, 2)</td>
<td>false</td>
</tr>
<tr title="Comparision with primitive-like object">
<script>var numberObject1 = new Number(1)</script>
<td>has(1, [numberObject1, 2, 3])</td>
<td>true</td>
</tr>
<tr title="Array of needles">
<td>has([1, 4], [1, 2, 3])</td>
<td>[true, false]</td>
</tr>
<tr title="Object haystack">
<td>$fn.has('foo', foo: 1)</td>
<td>true</td>
</tr>
<tr title="Array of needles with object haystack">
<td>$fn.has(['foo', 'bar'], foo: 1)</td>
<td>[true, false]</td>
</tr>
</table>
</section>
<section>
<h1>replace()</h1>
<table class="reftest" data-test="expressionEvaluation" data-columns="3">
<tr>
<td>replace("foooo", "o", "aa")</td>
<td>"faaaaaaaa"</td>
</tr>
<tr title="Array haystack">
<td>replace(["bar", "baz"], "a", "o")</td>
<td>["bor", "boz"]</td>
</tr>
<tr title="Non-recursive replace">
<td>replace("foooo", "oo", "o")</td>
<td>"foo"</td>
</tr>
<tr title="Recursive replace">
<td>replace("foooo", "oo", "o", 10)</td>
<td>"fo"</td>
</tr>
<tr title="Recursive replace with bound">
<td>replace("fo", "o", "oo", 2)</td>
<td>"foooo"</td>
</tr>
</table>
</section>
<section>
<h1>idify()</h1>
<table class="reftest" data-test="expressionEvaluation" data-columns="3">
<tr>
<td>idify(" Foo ^ Bar ")</td>
<td>"foo-bar"</td>
</tr>
<tr>
<td>idify("property ↔ Collection")</td>
<td>"property-collection"</td>
</tr>
<tr>
<td>idify("pâté")</td>
<td>"pate"</td>
</tr>
<tr>
<td>idify("Chicken Liver Pâté! 😋")</td>
<td>"chicken-liver-pate"</td>
</tr>
</table>
</section>
<section>
<h1>intersects()</h1>
<table class="reftest" data-test="expressionEvaluation" data-columns="3">
<tr>
<td>intersects([1], [1])</td>
<td>true</td>
</tr>
<tr>
<td>intersects([1, 2], [1, 3])</td>
<td>true</td>
</tr>
<tr>
<td>intersects([1, 2], [3, 4])</td>
<td>false</td>
</tr>
</table>
</section>
<section>
<h1>intersection()</h1>
<table class="reftest" data-test="expressionEvaluation" data-columns="3">
<tr>
<td>intersection()</td>
<td>null</td>
</tr>
<tr>
<td>intersection(null, null)</td>
<td>null</td>
</tr>
<tr>
<td>intersection([1], null)</td>
<td>null</td>
</tr>
<tr>
<td>intersection(null, [1])</td>
<td>null</td>
</tr>
<tr>
<td>intersection([1], [1])</td>
<td>[1]</td>
</tr>
<tr>
<td>intersection([1, 2], [1, 3])</td>
<td>[1]</td>
</tr>
<tr>
<td>intersection([1, 1, 2], [1, 3, 1])</td>
<td>[1, 1]</td>
</tr>
<tr>
<td>intersection([1, 2], [3, 4])</td>
<td>[]</td>
</tr>
<tr>
<td>intersection([], [3, 4])</td>
<td>[]</td>
</tr>
<tr>
<td>intersection([1, 2], [])</td>
<td>[]</td>
</tr>
</table>
</section>
<section>
<h1>reverse()</h1>
<table class="reftest" data-test="expressionEvaluation" data-columns="3">
<tr>
<td>reverse([1, 2, 3, 4, 5])</td>
<td>[5, 4, 3, 2, 1]</td>
</tr>
<tr>
<td>reverse([-3, 2, 0, 1, -5, 3])</td>
<td>[3, -5, 1, 0, 2, -3]</td>
</tr>
<tr>
<td>reverse(["a", "b", "c", "z"])</td>
<td>["z", "c", "b", "a"]</td>
</tr>
</table>
</section>
<section>
<h1>range()</h1>
<table class="reftest" data-test="expressionEvaluation" data-columns="3">
<tr>
<td>range(1, 10)</td>
<td>[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]</td>
</tr>
<tr title="Only b provided">
<td>range(3)</td>
<td>[1, 2, 3]</td>
</tr>
<tr title="Only b provided and is negative">
<td>range(-3)</td>
<td>[-1, -2, -3]</td>
</tr>
<tr>
<td>range(-5, 1)</td>
<td>[-5, -4, -3, -2, -1, 0, 1]</td>
</tr>
<tr title="Non-integer b">
<td>range(1, 3.5)</td>
<td>[1, 2, 3]</td>
</tr>
<tr title="Non-integer a">
<td>range(.5, 3)</td>
<td>[.5, 1.5, 2.5]</td>
</tr>
<tr title="a > b">