2025-07-20 11:59:18 +08:00

84 lines
1.3 KiB
JavaScript

// function sum (x , y) {
// return x + y
// }
// console.log(sum(1, 10))
// var person = {name: '小明', age: 23}
// console.log(person)
// person.greet = function() {
// console.log(`hello, my name is ${this.name}, age ${this.age}`)
// }
// person.greet()
// var name = '李四'
// var age = 23
// function greet () {
// console.log(`hello, my name is ${name}, age ${age}`)
// }
// greet()
// fn = function (x , y) {
// return x + y
// }
// console.log(fn(1,2))
// fn = (x, y) => {
// return x + y
// }
// console.log(fn(1,2))
// fn = (x, y) => { return x + y}
// console.log(fn(1,2))
// fn = (x, y) => x + y
// console.log(fn(1,2))
// pow = x => x * x
// console.log(pow(100))
// pkg
import {firstName, sum as my_sum} from './tool.mjs'
console.log(my_sum(1,10))
console.log(firstName)
// pkg.
// import { MYAPP } from './app.mjs'
// console.log(MYAPP.version)
// pkg
// import { default as MYAPP } from './app.mjs'
import appPKg from './app.mjs'
console.log(appPKg.name)
// for item := rang a {}
var a = ['A', 'B', 'C'];
for (var item of a) {
// fn(item)
console.log(item)
}
// for k,v := range o {}
var o = {
name: 'Jack',
age: 20,
city: 'Beijing'
};
for (var item of Object.keys(o)) {
console.log(item, o[item])
}
// forEach
a.forEach((item) => {
console.log(item)
})