HTML \u3067 Form \u3092\u4f5c\u3063\u3066\u9001\u4fe1\u524d\u306b\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\uff08\u5165\u529b\u5185\u5bb9\u304c\u6b63\u3057\u3044\u304b\u78ba\u8a8d\uff09\u3057\u305f\u3044\u6642\u306a\u3069\u306b onsubmit \u3092\u30ad\u30e3\u30f3\u30bb\u30eb\u3057\u307e\u3059\u3088\u306d\u3002
\u4eca\u56de\u3001\u30ad\u30e3\u30f3\u30bb\u30eb\u3067\u304d\u306a\u304f\u3066\u8b0e\u306b 1\u6642\u9593\u307b\u3069\u6d88\u8017\u3057\u3066\u6094\u3057\u304b\u3063\u305f\u306e\u3067\u3082\u3046\u8ab0\u3082\u3053\u3093\u306a\u30df\u30b9\u3092\u3057\u306a\u304f\u3066\u3044\u3044\u3088\u3046\u306b\u66f8\u3044\u3066\u304a\u304f\u3002<\/p>\n\n\n\n
\u60b2\u3057\u904e\u304e\u307e\u3059\u306d\u3002<\/p>\n\n\n\n
\u6b63\u3057\u3044\u306e\u304c\u3053\u3063\u3061\u3002<\/p>\n\n\n\n
<Form action=\"hoge\" method=\"GET or POST\" onsubmit=\"return validate();\">\n\u3000<Input type=\"text\" name=\"fuga\">\n\u3000<Input type=\"submit\" value=\"submit\">\n<\/Form><\/pre><\/div>\n\n\n\n\u3053\u3063\u3061\u304c\u9593\u9055\u3044\u3002<\/p>\n\n\n\n
<Form action=\"hoge\" method=\"GET or POST\">\n\u3000<Input type=\"text\" name=\"fuga\">\n\u3000<Input type=\"submit\" value=\"submit\" onsubmit=\"return validate();\">\n<\/Form><\/pre><\/div>\n\n\n\n<input type=\"submit\"><\/code> \u306b\u306f onclick \u306f\u53cd\u5fdc\u3059\u308b\u304b\u3089\u4f59\u8a08\u306b\u30cf\u30de\u3063\u3066\u3057\u307e\u3063\u305f\u3002<\/p>\n\n\n\n\u305d\u306e\u4ed6\u306e\u539f\u56e0\uff11<\/h1>\n\n\n\n
\u3042\u308a\u304c\u3061\u306a\u306e\u306f onsubmit \u306e\u66f8\u304d\u65b9\u3002onsubmit \u306f function \u306a\u306e\u3067\u6700\u5f8c\u306b return false<\/code> \u3092\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u306e\u3060\u3051\u3069\u3001\u4f8b\u3048\u3070 onsubmit=\"validate();\"<\/code> \u3060\u3068 validate()<\/code> \u3067\u3044\u304f\u3089 return false<\/code> \u3092\u8fd4\u3057\u3066\u3044\u3066\u3082 onsubmit \u306e function \u5185\u3067\u306f\u4f55\u3082\u8fd4\u3063\u3066\u3044\u306a\u3044\u3002<\/p>\n\n\n\n\u6b63\u3057\u304f\u306f onsubmit=”return validate();” \u3068\u3059\u308b\u3002<\/strong>
\u4f55\u304b\u51e6\u7406\u3057\u305f\u4e0a\u3067\u5e38\u306b\u30ad\u30e3\u30f3\u30bb\u30eb\u3057\u305f\u3044\u306a\u3089 onsubmit=\"something(); return false;\"<\/code> \u3068\u3059\u308c\u3070\u3044\u3044\u3002\u5e38\u306b\u30ad\u30e3\u30f3\u30bb\u30eb\u3067\u3042\u308a\u304c\u3061\u306a\u5931\u6557\u304c onsubmit=\"false\"<\/code> \u3053\u308c\u3082 onsubmit=\"return false;\"<\/code> \u3068\u3057\u306a\u3044\u3068\u3044\u3051\u306a\u3044\u3002<\/p>\n\n\n\n\u3064\u307e\u308a\u3001 onsubmit=\"\"<\/code> \u306f\u3001\u5b9f\u969b\u306b\u306f onsubmit = function (\u5909\u6570) { }<\/code> \u306a\u306e\u3067
<\/p>\n\n\n\nfunction (hoge) {\n\u3000validate();\n}<\/code><\/pre>\n\n\n\n\u3067\u306f\u306a\u304f\u3066<\/p>\n\n\n\n
function (hoge) {\n\u3000return validate();\n}<\/code><\/pre>\n\n\n\n
\u3068\u3057\u306a\u3044\u3068\u4f55\u3082\u5024\u304c\u8fd4\u3089\u306a\u3044\u3053\u3068\u304c\u308f\u304b\u308b\u3002<\/p>\n\n\n\n
\u305d\u306e\u4ed6\u306e\u539f\u56e0\uff12<\/h1>\n\n\n\n
JavaScript \u5185\u3067\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u3066\u3044\u308b\u3002<\/strong>\u30a8\u30e9\u30fc\u304c\u51fa\u3066\u3044\u306a\u3044\u304b\u78ba\u8a8d\u3057\u3066\u307f\u308b\u3002<\/p>\n\n\n\n
Form \u306e\u30c7\u30d0\u30c3\u30b0\u306e\u5384\u4ecb\u306a\u3068\u3053\u308d\u306f\u9001\u4fe1\u3055\u308c\u3066\u3057\u307e\u3063\u3066 console.log(); \u306e\u7d50\u679c\u304c\u78ba\u8a8d\u3067\u304d\u306a\u3044<\/strong>\u306e\u3067\u3001\u30d6\u30e9\u30a6\u30b6\u306e\u30c7\u30d0\u30c3\u30b0\u753b\u9762\u3067\u30d6\u30ec\u30fc\u30af\u30dd\u30a4\u30f3\u30c8\u3092\u6d3b\u7528\u3059\u308b\u3002\u3082\u3057\u304f\u306f\u7c21\u5358\u306b alert();<\/code> \u3067\u5206\u5c90\u3084\u5909\u6570\u306e\u4e2d\u8eab\u3092\u8868\u793a\u3057\u3066\u307f\u308b\u3068\u304b\u3067\u30c7\u30d0\u30c3\u30b0\u3057\u3066\u307f\u308b\u3068\u826f\u3044\u3067\u3059\u3002<\/p>\n\n\n\n\u3053\u3061\u3089\u306e\u8a18\u4e8b\u304c\u3068\u3066\u3082\u4e01\u5be7\u3067\u53c2\u8003\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n