/* 值类型 */n1 = 123;n2 = n1; //赋值n2 = 456;alert(n1); //123; n1 != n2/* 对象类型 */arr1 = [123];arr2 = arr1; //引用arr2[0] = 456;alert(arr1[0]); //456; arr1 === arr2
JavaScript 演练(7). 赋值与引用
TAG:
/* 值类型 */n1 = 123;n2 = n1; //赋值n2 = 456;alert(n1); //123; n1 != n2/* 对象类型 */arr1 = [123];arr2 = arr1; //引用arr2[0] = 456;alert(arr1[0]); //456; arr1 === arr2
