单项选择题
A.报错B.1C.2D.undefined
var Person = { age: 18, sayHello: ()=>{ console.log(thi...
var Person = { 'age': 18, 'sayHello': ()=>{ console.log(this.age); }};var age = 20;Person.sayHello();上面代码的结果是()
A.报错B.undefinedC.18D.20
下面哪一个是JavaScript 中array的正确用法? ()A.var txt =new Array("t...
单项选择题下面哪一个是JavaScript 中array的正确用法? ()
A.var txt =new Array("tim","kim","jim")B.var txt =new Array="tim","kim","jim"C.var txt =new Array:1=("tim")2=("kim")3=("jim")D.var txt =new Array(1:"tim",2:"kim",3:"jim")
setTimeout(“go()”,?10);表示的意思是() A.间隔10秒后,go()函数执行一次B.go...
单项选择题setTimeout(“go()”,?10);表示的意思是()
A.间隔10秒后,go()函数执行一次B.go()函数持续调用10次C.间隔10毫秒后,go()函数执行一次D.间隔10分钟后,go()函数执行一次