A callback is a function that is passed as an argument to another function and is executed after its parent function has completed.
example:
function a(callback){
alert('parent function.');
callback();
}
function b(){
alert('callback function.');
}
execute a(b)
result:
parent function.
callback function.
如何传参数?
(后面续)
example:
function a(callback){
alert('parent function.');
callback();
}
function b(){
alert('callback function.');
}
execute a(b)
result:
parent function.
callback function.
如何传参数?
(后面续)
本文深入探讨了回调函数的概念,通过实例展示了如何在JavaScript中使用回调函数,并详细阐述了传递参数的方法。
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