어드민

var testHelper = function() {

  var testSuite = function() {
    test("Integer Literals", function() {
      ok(isNumber("-10"), "Negative integer string");
      ok(isNumber("0"), "Zero string");
      ok(isNumber("5"), "Positive integer string");
      ok(isNumber(-16), "Negative integer number");
      ok(isNumber(0), "Zero integer number");
      ok(isNumber(32), "Positive integer number");
      ok(isNumber("040"), "Octal integer literal string");
      ok(isNumber(0144), "Octal integer literal");
      ok(isNumber("-040"), "Negative Octal integer literal string");
      ok(isNumber(-0144), "Negative Octal integer literal");
      ok(isNumber("0xFF"), "Hexadecimal integer literal string");
      ok(isNumber(0xFFF), "Hexadecimal integer literal");
      ok(isNumber("-0xFF"), "Negative Hexadecimal integer literal string");
      ok(isNumber(-0xFFF), "Negative Hexadecimal integer literal");
    });

    test("Foating-Point Literals", function() {
      ok(isNumber("-1.6"), "Negative floating point string");
      ok(isNumber("4.536"), "Positive floating point string");
      ok(isNumber(-2.6), "Negative floating point number");
      ok(isNumber(3.1415), "Positive floating point number");
      ok(isNumber(8e5), "Exponential notation");
      ok(isNumber("123e-2"), "Exponential notation string");
    });

    test("Non-Numeric values", function() {
      equals(isNumber(""), false, "Empty string");
      equals(isNumber("        "), false, "Whitespace characters string");
      equals(isNumber("\t\t"), false, "Tab characters string");
      equals(isNumber("abcdefghijklm1234567890"), false, "Alphanumeric character string");
      equals(isNumber("xabcdefx"), false, "Non-numeric character string");
      equals(isNumber(true), false, "Boolean true literal");
      equals(isNumber(false), false, "Boolean false literal");
      equals(isNumber("bcfed5.2"), false, "Number with preceding non-numeric characters");
      equals(isNumber("7.2acdgs"), false, "Number with trailling non-numeric characters");
      equals(isNumber(undefined), false, "Undefined value");
      equals(isNumber(null), false, "Null value");
      equals(isNumber(NaN), false, "NaN value");
      equals(isNumber(Infinity), false, "Infinity primitive");
      equals(isNumber(Number.POSITIVE_INFINITY), false, "Positive Infinity");
      equals(isNumber(Number.NEGATIVE_INFINITY), false, "Negative Infinity");
      equals(isNumber(new Date(2009, 1, 1)), false, "Date object");
      equals(isNumber(new Object()), false, "Empty object");
      equals(isNumber(function() {}), false, "Instance of a function");
      equals(isNumber([]), false, "Empty Array");
      equals(isNumber(["-10"]), false, "Array Negative integer string");
      equals(isNumber(["0"]), false, "Array Zero string");
      equals(isNumber(["5"]), false, "Array Positive integer string");
      equals(isNumber([-16]), false, "Array Negative integer number");
      equals(isNumber([0]), false, "Array Zero integer number");
      equals(isNumber([32]), false, "Array Positive integer number");
      equals(isNumber(["040"]), false, "Array Octal integer literal string");
      equals(isNumber([0144]), false, "Array Octal integer literal");
      equals(isNumber(["-040"]), false, "Array Negative Octal integer literal string");
      equals(isNumber([-0144]), false, "Array Negative Octal integer literal");
      equals(isNumber(["0xFF"]), false, "Array Hexadecimal integer literal string");
      equals(isNumber([0xFFF]), false, "Array Hexadecimal integer literal");
      equals(isNumber(["-0xFF"]), false, "Array Negative Hexadecimal integer literal string");
      equals(isNumber([-0xFFF]), false, "Array Negative Hexadecimal integer literal");
      equals(isNumber([1, 2]), false, "Array with more than 1 Positive interger number");
      equals(isNumber([-1, -2]), false, "Array with more than 1 Negative interger number");
    });
  }

  var functionsToTest = [

    function(n) {
      return !isNaN(parseFloat(n)) && isFinite(n);
    },

    function(n) {
      return !isNaN(n) && !isNaN(parseFloat(n));
    },

    function(n) {
      return !isNaN((n));
    },

    function(n) {
      return !isNaN(parseFloat(n));
    },

    function(n) {
      return typeof(n) != "boolean" && !isNaN(n);
    },

    function(n) {
      return parseFloat(n) === Number(n);
    },

    function(n) {
      return parseInt(n) === Number(n);
    },

    function(n) {
      return !isNaN(Number(String(n)));
    },

    function(n) {
      return !isNaN(+('' + n));
    },

    function(n) {
      return (+n) == n;
    },

    function(n) {
      return n && /^-?\d+(\.\d+)?$/.test(n + '');
    },

    function(n) {
      return isFinite(Number(String(n)));
    },

    function(n) {
      return isFinite(String(n));
    },

    function(n) {
      return !isNaN(n) && !isNaN(parseFloat(n)) && isFinite(n);
    },

    function(n) {
      return parseFloat(n) == n;
    },

    function(n) {
      return (n - 0) == n && n.length > 0;
    },

    function(n) {
      return typeof n === 'number' && isFinite(n);
    },

    function(n) {
      return !Array.isArray(n) && !isNaN(parseFloat(n)) && isFinite(n.toString().replace(/^-/, ''));
    }

  ];


  // Examines the functionsToTest array, extracts the return statement of each function
  // and fills the toTest select element.
  var fillToTestSelect = function() {
    for (var i = 0; i < functionsToTest.length; i++) {
      var f = functionsToTest[i].toString();
      var option = /[\s\S]*return ([\s\S]*);/.exec(f)[1];
      $("#toTest").append('<option value="' + i + '">' + (i + 1) + '. ' + option + '</option>');
    }
  }

  var performTest = function(functionNumber) {
    reset(); // Reset previous test
    $("#tests").html(""); //Clean test results
    isNumber = functionsToTest[functionNumber]; // Override the isNumber global function with the one to test
    testSuite(); // Run the test

    // Get test results
    var totalFail = 0;
    var totalPass = 0;
    $("b.fail").each(function() {
      totalFail += Number($(this).html());
    });
    $("b.pass").each(function() {
      totalPass += Number($(this).html());
    });
    $("#testresult").html(totalFail + " of " + (totalFail + totalPass) + " test failed.");

    $("#banner").attr("class", "").addClass(totalFail > 0 ? "fail" : "pass");
  }

  return {
    performTest: performTest,
    fillToTestSelect: fillToTestSelect,
    testSuite: testSuite
  };
}();


$(document).ready(function() {
  testHelper.fillToTestSelect();
  testHelper.performTest(0);

  $("#toTest").change(function() {
    testHelper.performTest($(this).children(":selected").val());
  });
});

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<h1>isNumber Test Cases</h1>

<h2 id="banner" class="pass"></h2>

<h2 id="userAgent">Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.95 Safari/537.11</h2>

<div id="currentFunction"></div>

<div id="selectFunction">
  <label for="toTest" style="font-weight:bold; font-size:Large;">Select function to test:</label>
  <select id="toTest" name="toTest">
  </select>
</div>

<div id="testCode"></div>

<ol id="tests">
  <li class="pass">
    <strong>Integer Literals <b style="color:black;">(0, 10, 10)</b></strong>

    <ol style="display: none;">
      <li class="pass">Negative integer string</li>

      <li class="pass">Zero string</li>

      <li class="pass">Positive integer string</li>

      <li class="pass">Negative integer number</li>

      <li class="pass">Zero integer number</li>

      <li class="pass">Positive integer number</li>

      <li class="pass">Octal integer literal string</li>

      <li class="pass">Octal integer literal</li>

      <li class="pass">Hexadecimal integer literal string</li>

      <li class="pass">Hexadecimal integer literal</li>
    </ol>
  </li>

  <li class="pass">
    <strong>Foating-Point Literals <b style="color:black;">(0, 6, 6)</b></strong>

    <ol style="display: none;">
      <li class="pass">Negative floating point string</li>

      <li class="pass">Positive floating point string</li>

      <li class="pass">Negative floating point number</li>

      <li class="pass">Positive floating point number</li>

      <li class="pass">Exponential notation</li>

      <li class="pass">Exponential notation string</li>
    </ol>
  </li>

  <li class="pass">
    <strong>Non-Numeric values <b style="color:black;">(0, 18, 18)</b></strong>

    <ol style="display: none;">
      <li class="pass">Empty string: false</li>

      <li class="pass">Whitespace characters string: false</li>

      <li class="pass">Tab characters string: false</li>

      <li class="pass">Alphanumeric character string: false</li>

      <li class="pass">Non-numeric character string: false</li>

      <li class="pass">Boolean true literal: false</li>

      <li class="pass">Boolean false literal: false</li>

      <li class="pass">Number with preceding non-numeric characters: false</li>

      <li class="pass">Number with trailling non-numeric characters: false</li>

      <li class="pass">Undefined value: false</li>

      <li class="pass">Null value: false</li>

      <li class="pass">NaN value: false</li>

      <li class="pass">Infinity primitive: false</li>

      <li class="pass">Positive Infinity: false</li>

      <li class="pass">Negative Infinity: false</li>

      <li class="pass">Date object: false</li>

      <li class="pass">Empty object: false</li>

      <li class="pass">Instance of a function: false</li>
    </ol>
  </li>
</ol>

<div id="main">
  This page contains tests for a set of isNumber functions. To see them, take a look at the source.
</div>

<div>
  <p class="result">Tests completed in 0 milliseconds.
    <br>0 tests of 0 failed.</p>
</div>