HTML代码:
<p id="result"></p>
JS代码:
var eleResult = document.getElementById("result");
if (!window.console) {
window.console = {};
}
console.log = function(result) {
var text = document.createTextNode(result), br = document.createElement("br");
eleResult.appendChild(text);
eleResult.appendChild(br);
};
if (typeof Array.prototype.forEach != "function") {
Array.prototype.forEach = function (fn, context) {
for (var k = 0, length = this.length; k < length; k++) {
if (typeof fn === "function" && Object.prototype.hasOwnProperty.call(this, k)) {
fn.call(context, this[k], k, this);
}
}
};
}
var database = {
users: ["张含韵", "江一燕", "李小璐"],
sendEmail: function (user) {
if (this.isValidUser(user)) {
console.log("你好," + user);
} else {
console.log("抱歉,"+ user +",你不是本家人");
}
},
isValidUser: function (user) {
return /^张/.test(user);
}
};
// 给每个人法邮件
database.users.forEach( // database.users中人遍历
database.sendEmail, // 发送邮件
database // 使用database代替上面database.sendEmail方法中的上下文this
);