如何使用jQuery从另一个函数访问变量？

var myVariable = "Hello";

function anotherFunction() {
  console.log(myVariable);
}

anotherFunction(); // 输出：Hello

function outerFunction() {
  var myVariable = "Hello";

  function innerFunction() {
    console.log(myVariable);
  }

  return innerFunction;
}

var myFunction = outerFunction();
myFunction(); // 输出：Hello

function anotherFunction(myVariable) {
  console.log(myVariable);
}

var myVariable = "Hello";
anotherFunction(myVariable); // 输出：Hello

var myElement = $("#myElement");

function anotherFunction() {
  console.log(myElement.data("myVariable"));
}

myElement.data("myVariable", "Hello");
anotherFunction(); // 输出：Hello