我之前在調試代碼的時候,跟砸js代碼執行情況,一般都是通過在代碼塊中使用alert的方式查看js代碼的執行情況,今天也是看到有朋友使用console.log函數打印輸出函數,變量,對象,下邊就console.log的使用情況進行記錄,具體的語法是:
console.log("值為:",fn);
console.log()能夠輸出變量,函數,數組,對象等等
<html>
<head>
<title>this關鍵字_函數調用</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312"></head>
<body>
<input type="text" id="test1" name="firstname" value="" />
<input type="text" id='lastname' name='lastname' value=''>
</body>
<script type="text/javascript">
var testobj =
{
'id': 1,
'content': 'test',
'firstname': function() {
var EleFirst= document.getElementById('test1');
//document.getElementById('firstname').value = "zhang";
//document.getElementById("test1").value = this.content;
//document.getElementById("test1").setAttribute("value","zhang");
//this.content = val;
EleFirst.setAttribute("value",this.content);
console.log("對象的值為：",test1);//對象的值為：<input type="text" id="test1" name="firstname" value="" />
},
'lastname': function() {
document.getElementById('lastname').value = "ying";
}
};
console.log(testobj);/** 打印對像**/
testobj.firstname();
testobj.lastname();
</script>
</html>