js的console.log用法

javascript的console.log()用法

<script type="text/javascript">

//变量

var i = 'I am a string';

console.log('变量：',i);

//数组

var arr = [1,2,3,4,5];

console.log('数组：',arr);

//对象

var obj1 = {

key1 : 'value1',

key2 : 'value2',

key3 : 'value3'

};

var obj2 = {

key6 : 'value4',

key5 : 'value5',

key4 : 'value6'

};

var obj3 = {

key9 : 'value7',

key8 : 'value8',

key7 : 'value9'

};

console.log('对象：',obj1);

//对象数组

var objArr1 = [obj1,obj2,obj3];

var objArr2 = [[obj1],[obj2],[obj3]];

console.log('对象数组1：',objArr1);

console.log('对象数组1：',objArr2);

</script>

输出：

变量：I am a string
数组：[1, 2, 3, 4, 5]
对象：Object { key1="value1", key2="value2", key3="value3"}
对象数组1：[Object { key1="value1", key2="value2", key3="value3"}, Object { key6="value4", key5="value5", key4="value6"}, Object { key9="value7", key8="value8", key7="value9"}]
对象数组1：[[Object { key1="value1", key2="value2", key3="value3"}], [Object { key6="value4", key5="value5", key4="value6"}], [Object { key9="value7", key8="value8", key7="value9"}]]