Created
April 5, 2012 20:00
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Converts an integer into a its proper ordinal ("1st", "2nd", "3rd", "4th")
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| /*global YUI*/ | |
| /** | |
| * Converts an integer into a its proper ordinal ("1st", "2nd", "3rd", "4th") | |
| * @module number-to-ord | |
| */ | |
| YUI.add("number-to-ord", function (Y) { | |
| "use strict"; | |
| /** | |
| * Converts an integer into a its proper ordinal ("1st", "2nd", "3rd", "4th") | |
| * | |
| * @method toOrd | |
| * @param {Number|String} value The integer to convert | |
| * @return {String} The ordinal value of the number. | |
| * @static | |
| * @namespace Lang | |
| */ | |
| Y.Lang.toOrd = function (value) { | |
| var s = String(value), | |
| len = s.length, | |
| end = s.substr(len - 1, 1), | |
| teen = len > 1 && s.substr(len - 2, 1) === "1", | |
| ord = "th"; | |
| if (end === "1" && !teen) { | |
| ord = "st"; | |
| } else if (end === "2" && !teen) { | |
| ord = "nd"; | |
| } else if (end === "3" && !teen) { | |
| ord = "rd"; | |
| } | |
| return ord; | |
| }; | |
| }, "3.4.1"); |
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| /*global YUI*/ | |
| YUI({ logInclude: { TestRunner: true } }).use("number-to-ord", "console", "test", function (Y) { | |
| "use strict"; | |
| var yConsole = new Y.Console({ newestOnTop: false }); | |
| Y.Test.Runner.add(new Y.Test.Case({ | |
| name: "Y.Lang.toOrd Test", | |
| "should convert numbers to ordinals": function () { | |
| var i = 4; | |
| Y.Assert.areEqual("st", Y.Lang.toOrd(1)); | |
| Y.Assert.areEqual("nd", Y.Lang.toOrd(2)); | |
| Y.Assert.areEqual("rd", Y.Lang.toOrd(3)); | |
| do { | |
| Y.Assert.areEqual("th", Y.Lang.toOrd(i)); | |
| } while (++i < 10); | |
| }, | |
| "should handle teens correctly": function () { | |
| var i = 11; | |
| do { | |
| Y.Assert.areEqual("th", Y.Lang.toOrd(i)); | |
| } while (++i < 14); | |
| }, | |
| "should handle long numbers correctly": function () { | |
| var start = 11013254340, | |
| expected = ["th", "st", "nd", "rd", "th"], | |
| i = 0, | |
| l = expected.length; | |
| for (i, l; i < l; i += 1) { | |
| Y.Assert.areEqual(expected[i], Y.Lang.toOrd(start + i)); | |
| } | |
| } | |
| })); | |
| yConsole.render(); | |
| Y.Test.Runner.run(); | |
| }); |
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>Simple Number to Ordinal Converter</title> | |
| </head> | |
| <body class="yui3-skin-sam"> | |
| <script src="http://yui.yahooapis.com/3.4.1/build/yui/yui-min.js"></script> | |
| <script src="number-to-ord.js"></script> | |
| <script src="number-to-ord-test.js"></script> | |
| </body> | |
| </html> |
Heyho,
i was looking for a small and easy way to get the ordinal of a number, i stumbled across yours and this seems a way to long for web front ends.
This method does exactly the same and is 300 bytes shorter:
function(v) { return ["th","st","nd","rd"][Math.abs(~[1,2,3].indexOf(+(+v).toFixed().substr(-1)))]; }Greetings :)
but it's wrong for teen numbers
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Heyho,
i was looking for a small and easy way to get the ordinal of a number, i stumbled across yours and this seems a way to long for web front ends.
This method does exactly the same and is 300 bytes shorter:
function(v) { return ["th","st","nd","rd"][Math.abs(~[1,2,3].indexOf(+(+v).toFixed().substr(-1)))]; }Greetings :)