The use of js callback function

Language 2022-03-23 20:52:27 views: null

var fun = function(f) {
    
    
    var a = 3;
    f(a);
}

fun(function(data) {
    
    
    console.log(data);
})

Output result:
insert image description here

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Origin blog.csdn.net/weixin_45932157/article/details/123611620

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