javascript解决表单仍然提交即使监听处理函数返回false_javascript技巧



代码如下:


var code = function () {
return false;
};
var element = window.document.getElementById("form");
if (element.addEventListener) {
element.addEventListener("submit", code, false);
}


修改后的Code:
代码如下:


var code = function (eventObject) {
if (eventObject.preventDefault) {
eventObject.preventDefault();
} else if (window.event) /* for ie */ {
window.event.returnValue = false;
}
return true;
};
window.onload = function(){
var element = window.document.getElementById("form");
if (element.addEventListener) {
element.addEventListener("submit", code, false);
} else if (element.attachEvent) {
element.attachEvent("onsubmit", code);
}
}


备注:

1:preventDefault函数的使用请参考 https://developer.mozilla.org/en/DOM/event.preventDefault
2:DOM Events :http://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-Event-preventDefault