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November 14, 2012 04:41
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JavaScript > snippets > バリデーション
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| <!DOCTYPE html> | |
| <html lang="ja"> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>Validation Test</title> | |
| <link rel="stylesheet" href="http://code.jquery.com/qunit/qunit-1.10.0.css" media="all"> | |
| </head> | |
| <body> | |
| <div id="qunit"></div> | |
| <script src="http://code.jquery.com/qunit/qunit-1.10.0.js"></script> | |
| <script src="validation.js"></script> | |
| <script src="validation_test.js"></script> | |
| </body> | |
| </html> |
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| /** | |
| * 入力チェック | |
| * | |
| * @author Hiroshi Sawai <[email protected]> | |
| */ | |
| function Validation() {}; | |
| /** | |
| * undefined, null, 空文字''のときはfalse。 | |
| * | |
| * @param values スカラー値または配列 | |
| * 引数なしで呼び出されたときはfalseを返す。 | |
| * ネストは考慮しない。 | |
| */ | |
| Validation.isNotEmpty = function (values) { | |
| var operands = []; | |
| var i; | |
| // 引数なし | |
| if (typeof values === 'undefined') { | |
| return false; | |
| } | |
| // scalar値は配列へ変換 | |
| if ((values instanceof Array) === false) { | |
| operands.push(values) | |
| } else { | |
| operands = values; | |
| } | |
| for (i = 0; i < operands.length; i++) { | |
| if (typeof operands[i] === 'undefined') { | |
| return false; | |
| } | |
| if (operands[i] === null) { | |
| return false; | |
| } | |
| if (operands[i] === '') { | |
| return false; | |
| } | |
| } | |
| return true; | |
| } | |
| /** | |
| * 0より大きいかをチェック | |
| * | |
| * @param {Number} num | |
| * 0より大きいときはtrue。それ以外はfalseを返す。 | |
| * 引数なしで呼び出したときはfalse | |
| */ | |
| Validation.isMoreThan0 = function(num) { | |
| // キャスト失敗はNaNを返す(エラーではない) | |
| // undefined, 空文字, nullはNaNを返す | |
| var result = parseInt(num, 10); | |
| // 数字以外 | |
| if (isNaN(result)) { | |
| return false; | |
| } | |
| // 0以下 | |
| if ((num <= 0) === true) { | |
| return false; | |
| } | |
| // 0より大きい | |
| return true; | |
| }; | |
| /** | |
| * 0以上かをチェック | |
| * | |
| * @param {Number} num | |
| * 0以上はtrue。それ以外はfalseを返す。 | |
| * 引数なしで呼び出したときはfalse | |
| */ | |
| Validation.is0AndMore = function(num) { | |
| // キャスト失敗はNaNを返す(エラーではない) | |
| // undefined, 空文字, nullはNaNを返す | |
| var result = parseInt(num, 10); | |
| // 数字以外 | |
| if (isNaN(result)) { | |
| return false; | |
| } | |
| // 0未満 | |
| if ((num < 0) === true) { | |
| return false; | |
| } | |
| // 0以上 | |
| return true; | |
| }; |
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| module('isNotEmpty'); | |
| test('引数なしの呼び出しはfalse', function() { | |
| equal(Validation.isNotEmpty(), false); | |
| }); | |
| test('未定義値はfalse', function() { | |
| var value; | |
| equal(Validation.isNotEmpty(value), false); | |
| }); | |
| test('null値はfalse', function() { | |
| var o = {}; | |
| o = null; | |
| equal(Validation.isNotEmpty(o), false); | |
| }); | |
| test("空文字''はfalse", function() { | |
| equal(Validation.isNotEmpty(''), false); | |
| }); | |
| test('文字列aはtrue', function() { | |
| equal(Validation.isNotEmpty('a'), true); | |
| }); | |
| test("値にundefine, null, 空文字''を含まない配列はtrue", function() { | |
| var arr = []; | |
| arr[0] = 'a'; | |
| arr[1] = 'b'; | |
| equal(Validation.isNotEmpty(arr), true); | |
| }); | |
| test("値にundefinedを含む配列はfalse", function() { | |
| var arr = []; | |
| arr[0]; | |
| arr[1] = 10; | |
| equal(Validation.isNotEmpty(arr), false); | |
| }); | |
| test("値にnullを含む配列はfalse", function() { | |
| var arr = []; | |
| arr[0] = {}; | |
| arr[0] = null; | |
| arr[1] = 10; | |
| equal(Validation.isNotEmpty(arr), false); | |
| }); | |
| test("値に空文字''を含む配列はfalse", function() { | |
| var arr = []; | |
| arr[0] = 10; | |
| arr[1] = ''; | |
| equal(Validation.isNotEmpty(arr), false); | |
| }); | |
| module('isMoreThan0') | |
| test('1はtrue', function() { | |
| var num = 1; | |
| equal(Validation.isMoreThan0(num), true); | |
| }); | |
| test('0はfalse', function() { | |
| var num = 0; | |
| equal(Validation.isMoreThan0(num), false); | |
| }); | |
| test('-1はfalse', function() { | |
| var num = -1; | |
| equal(Validation.isMoreThan0(num), false); | |
| }); | |
| test('Infinityはfalse', function() { | |
| var num = Infinity; | |
| equal(Validation.isMoreThan0(Infinity), false); | |
| }); | |
| test('NaNはfalse', function() { | |
| var num = NaN; | |
| equal(Validation.isMoreThan0(NaN), false); | |
| }); | |
| module('is0AndMore') | |
| test('1はtrue', function() { | |
| var num = 1; | |
| equal(Validation.isMoreThan0(num), true); | |
| }); | |
| test('0はtrue', function() { | |
| var num = 0; | |
| equal(Validation.isMoreThan0(num), false); | |
| }); | |
| test('-1はfalse', function() { | |
| var num = -1; | |
| equal(Validation.isMoreThan0(num), false); | |
| }); | |
| test('Infinityはfalse', function() { | |
| var num = Infinity; | |
| equal(Validation.isMoreThan0(Infinity), false); | |
| }); | |
| test('NaNはfalse', function() { | |
| var num = NaN; | |
| equal(Validation.isMoreThan0(NaN), false); | |
| }); |
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