作者:pratnket
版本:2017_Var1
javascript系列課程Days-1
javascript系列課程Days-2
javascript系列課程Days-3
使用頁
<html>
<head>
<script src="Verificat.js"></script>
<script>
function log(msg) {
if( window.console ) {
console.log(msg);
}
}
//使用方式,自訂DOM名稱
//入口
function ck(name) {
return document.getElementById(name);
}
//入口
function $(name) {
return document.getElementById(name);
}
window.onload = function() {
//簡易用法
//onclick="Verificat.Form()"
//程式用法--(sub) = Submit 的 name
//程式用法-- ck 函式
/*
ck("sub").onclick = function() {
//檢查表單
Verificat.Form();
//Verificat.result() 呼叫判斷結果
if( Verificat.result() == true ) alert("表單驗證成功");
if( Verificat.result() == false ) alert("表單驗證失敗");
};
*/
//我用JQ的符號測試
$("sub").onclick = function() {
//檢查表單
Verificat.Form();
//Verificat.result() 呼叫判斷結果
if( Verificat.result() == true ) alert("表單驗證成功");
if( Verificat.result() == false ) alert("表單驗證失敗");
};
};
</script>
</head>
<body>
<form id="Form">
數值1: <input id="fname" type="text" value="Mickey" />
數值2: <input id="lname" type="text" value="Mouse" required="" />
數值3: <input id="lname2" type="text" value="Mouse" required="" />
數值4: <input id="lname3" type="text" value="Mouse" required="" />
<input id="sub" name="sub" type="button" value="Submit"/>
</form>
</body>
</html>
JS頁
(function () {
//預設值
var options = {
Form: 'Form',
Placeholder: '請填寫入數值',
Style: 'background-color:powderblue',
Msg: '你尚有內容未填寫',
Bool: true,
}
//API
var api = {
//修改預設值
config: function (opts) {
if(!opts) return options;
for(var key in opts) {
options[key] = opts[key];
}
return this;
},
Form: function Form() {
var result = options.Bool;
var x = document.getElementById(options.Form);
for (var i=0 ; i < x.length ; i++){
if(x.elements[i].required){
if (x.elements[i].value==null || x.elements[i].value=="")
{
x.elements[i].style = options.Style;
x.elements[i].placeholder = options.Placeholder;
var result = false;
}
}
}
//result || (alert(options.Msg));
options.Bool = result;
return result;
},
result: function result() {
return options.Bool;
}
}
this.Verificat = api;
})();