<body> <h1>Javascript の変数</h1> <script type="text/javascript"> <!-- var a = 3; var b = 5; var w; w = a + b; document.write("a:", a, " b:", b, "<br>"); document.write("w=a+b:" + w + "<br>"); var c = "java"; var d = "Script"; w = a + c; document.write("c:" + c + " d:" + d + "<br>"); document.write("a:", a, " c:", c, "<br>"); document.write("w=a+c:" + w + "<br>"); // --> </script> |
w = a + c; document.write("w=a+c:" + w + "<br>"); |
w = a.toString() + c; |
num= Number(str); |
Math.floor(v1/v2); |
n = parseInt("123"); |
n = parseFloat("3.14"); |