NodeJS => ES6支援程度
- shipping (開發完成並默認支持)
- staged (開發完成,但必須使用
--harmony
參數) - in progress (開發中)
Multiline strings
不需要再使用\n
來換行
ES5的寫法
console.log(`In JavaScript '\n' is a line-feed.`)
ES6的寫法
console.log(`In JavaScript this is
not legal.`)
Expression interpolation
使用${expression}
就可以快速組合在字串中
ES5的寫法
var name = "Mario",
time = "today";
console.log('Hello ' + name + ', how are you ' + time + '?');
ES6的寫法
var name = "Mario",
time = "today";
console.log(`Hello ${name}, how are you ${time}?`);
Tagged template literals
var a = 5;
var b = 10;
function tag(strings, ...values) {
console.log(strings[0]); // "Hello "
console.log(strings[1]); // " world "
console.log(values[0]); // 15
console.log(values[1]); // 50
return "Yes";
}
tag `Hello ${ a + b } world ${ a * b }`;