javascript - 将一个函数传递给一个数组，然后调用它

Question

我正在尝试将一个函数添加到数组中，然后稍后再调用它。

// So add it here
var list = [{ Name: "Name1", Name2: "Name", Function: test() }]

// Then call it later which will run the function
list.Function;

function test(){
    var test = "test";
    console.log(test);
}

Answer 1

将函数放入列表时，您可能不想调用该函数，而将 test() 添加到数组时，您就是这样做的。这将在您创建列表并将结果添加到列表时调用该函数。此外，要在引用它时调用它，您需要包含索引:

function test(){
    var test = "test";
    console.log(test);
}
// So add it here
var list = [{ Name: "Name1", Name2: "Name", Function: test }] // just add a reference to test no `()`

// Then call it later which will run the function
list[0].Function();  // list is an array so you need to reference the first item