javascript - 如何将数组和函数导入到函数中

Question

1. 如何将我之前创建的现有函数导入到函数中？

2. 如何将数组导入到函数中？

function namarray (arr[])
{}

function namfunc (fun())
{}

如何用正确的语法编写它？

Answer 1

这两种情况都是一样的，您将所需的内容作为参数传递给函数。对于函数，您只需传递函数名称，因此不要包含 () - 稍后当您想要调用该函数时会使用它

您当然可以选择将输入保存到函数内的变量

// 1) How to import into function an existing function that I have alreqdy created before ?
// 2) How to import into function an array ?

function testFunction () {
  return 'I am the test function';
}

function questionOne (input) {
  console.log(input());
}

function questionTwo (input) {
  console.log(`I was given the input ${input}, which is an ${typeof input}`);
}

questionOne(testFunction);
questionTwo([1,2,3]);

// In reply to comment
let longArray = [1,2,3,4,5,6,7,8,9,11,22,33,44,55,66,77,88,99,111,222,333];
questionTwo(longArray);