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0.4.0 is out, with OOP-style and chaining

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This commit is contained in:
Jeremy Ashkenas
2009-11-07 14:29:40 -05:00
parent 4f0afda61c
commit ed37b9df49
6 changed files with 135 additions and 13 deletions
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35
test/chaining.js Normal file
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@@ -0,0 +1,35 @@
$(document).ready(function() {
module("Underscore chaining.");
test("chaining: map/flatten/reduce", function() {
var lyrics = [
"I'm a lumberjack and I'm okay",
"I sleep all night and I work all day",
"He's a lumberjack and he's okay",
"He sleeps all night and he works all day"
];
var counts = _(lyrics).chain()
.map(function(line) { return line.split(''); })
.flatten()
.reduce({}, function(hash, l) {
hash[l] = hash[l] || 0;
hash[l]++;
return hash;
}).get();
ok(counts['a'] == 16 && counts['e'] == 10, 'counted all the letters in the song');
});
test("chaining: select/reject/sortBy", function() {
var numbers = [1,2,3,4,5,6,7,8,9,10];
numbers = _(numbers).chain().select(function(n) {
return n % 2 == 0;
}).reject(function(n) {
return n % 4 == 0;
}).sortBy(function(n) {
return -n;
}).get();
equals(numbers.join(', '), "10, 6, 2", "filtered and reversed the numbers");
});
});

1
test/test.html
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@@ -12,6 +12,7 @@
<script type="text/javascript" src="functions.js"></script>
<script type="text/javascript" src="objects.js"></script>
<script type="text/javascript" src="utility.js"></script>
<script type="text/javascript" src="chaining.js"></script>
<script type="text/javascript" src="speed.js"></script>
</head>
<body>

12
test/utility.js
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@@ -21,6 +21,18 @@ $(document).ready(function() {
equals(_.uniq(ids).length, ids.length, 'can generate a globally-unique stream of ids');
});
test("utility: functions", function() {
var expected = ["all", "any", "bind", "bindAll", "clone", "compact", "compose",
"defer", "delay", "detect", "each", "every", "extend", "filter", "first",
"flatten", "foldl", "foldr", "forEach", "functions", "identity", "include",
"indexOf", "inject", "intersect", "invoke", "isArray", "isElement", "isEqual",
"isFunction", "isUndefined", "keys", "last", "lastIndexOf", "map", "max",
"methods", "min", "pluck", "reduce", "reduceRight", "reject", "select",
"size", "some", "sortBy", "sortedIndex", "template", "toArray", "uniq",
"uniqueId", "values", "without", "wrap", "zip"];
ok(_(expected).isEqual(_.methods()), 'provides a sorted list of functions');
});
test("utility: template", function() {
var basicTemplate = _.template("<%= thing %> is gettin' on my noives!");
var result = basicTemplate({thing : 'This'});