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在js中,能不能实现ios block这样的功能?

ios中的block用起来很方便,js基础很差,不知道js能不能实现block,思路是什么?


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by (71.8m points)

你用Block绝大多数的时候,都是作为参数,完成回调的功能,让不同作用域的变量被保存到其他作用域

在js中的闭包结合匿名函数就是干这种事儿的

如:

var foo = function() {
    console.log('do something here!')
}

function xxx(foo) {
    foo()
}

// 调用时,是不是很像block的样子
xxx(function(){
    console.log('do something here!')
})

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