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lec6_call_back_function.js
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lec6_call_back_function.js
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// function hello(name) {
// print();
// }
// function print(arg) {
// console.log("Hello" + " " + arg);
// }
// print("Alamin");
// function hello(name, print) {
// print(name);
// }
// hello("Alamin", function (a) {
// console.log("Hello" + " " + a);
// });
// hello("Alamin", function (a) {
// console.log("Hi how are you" + " " + a + "?");
// });
// hello("Azad", function (a) {
// console.log("Length of name is " + a.length);
// });
// // function print(a) {
// // console.log();
// // }
// var me = {
// name: "Al-amin",
// age: 18,
// email: "[email protected]",
// };
// function printmyself(person, callback) {
// console.log("Person: " + person.name + "(" + person.age + ")");
// if (person.age >= 18) {
// callback(person.email);
// }
// }
// printmyself(me, function (email) {
// console.log("Email sent to " + email);
// });
// function print(data, callback1, callback2) {
// console.log("Main data is: " + data);
// callback1(data);
// callback2(data);
// }
// print(
// "Hello I am alamin. I am learning Javascript",
// function (data) {
// console.log("Uppercase: " + data.toUpperCase());
// },
// function (data) {
// console.log("Lowercase: " + data.toLowerCase());
// }
// );
///////////////////////////////////
// const getVar = () =>
// {
// setTimeout(function(){
// console.log('This function takes some time');
// },3000)
// }
// const printSomething = () =>
// {
// console.log('This is another function');
// }
// console.log(getVar());
// console.log(printSomething());
///////////////////////
const getVar = (callback) =>
{
setTimeout(function(){
console.log('This function takes some time');
callback();
},3000)
}
const printSomething = () =>
{
console.log('This is another function');
}
console.log(getVar(printSomething));