Following the original , here’s some new goodies. Coding JavaScript in 2018 is actually fun again! JavaScript hacks for hipsters Here’s a photo of non-JavaScripter, non-hacker, non-ES6er, non-hipster on a PacMan background: Photo by on Erik Lucatero Unsplash Hipster Hack #1 — Swap variables Using to swap values Array Destructuring let a = 'world', b = 'hello'[a, b] = [b, a]console.log(a) // -> helloconsole.log(b) // -> world // Yes, it's magic Hipster Hack #2 — Async/Await with Destructuring Once again, is great. Combined with and promises to make a complex flow — simple. Array Destructuring async/await const [user, account] = await Promise.all([fetch('/user'),fetch('/account')]) Hipster Hack #3 — Debugging For anyone who likes to debug using s, here’s something awesome (and yes, I heard of ): console.log console.table const a = 5, b = 6, c = 7console.log({ a, b, c }) // outputs this nice object:// {// a: 5,// b: 6,// c: 7// } Hipster Hack #4 — One liners Syntax can be so much more compact for array operations // Find max valueconst max = (arr) => Math.max(...arr);max([123, 321, 32]) // outputs: 321 // Sum arrayconst sum = (arr) => arr.reduce((a, b) => (a + b), 0)sum([1, 2, 3, 4]) // output: 10 Hipster Hack #5 — Array concatenation The spread operator can be used instead of : concat const one = ['a', 'b', 'c']const two = ['d', 'e', 'f']const three = ['g', 'h', 'i'] // Old way #1const result = one.concat(two, three) // Old way #2const result = [].concat(one, two, three) // Newconst result = [...one, ...two, ...three] Hipster Hack #6 — Cloning Clone arrays and objects with ease: const obj = { ...oldObj }const arr = [ ...oldArr ] Update: As mentioned in the comments — this is a shallow clone. Hipster Hack #7 — Named parameters Making function and function calls more readable with destructuring: const getStuffNotBad = (id, force, verbose) => {...do stuff}const getStuffAwesome = ({ id, name, force, verbose }) => {...do stuff} // Somewhere else in the codebase... WTF is true, true?getStuffNotBad(150, true, true) // Somewhere else in the codebase... I ❤ JS!!!getStuffAwesome({ id: 150, force: true, verbose: true }) Already knew them all? You’re a true hipster hacker, you can read more . tips & tricks for writing better code Let’s talk more on You can also check my startup where we make “SaaS headache” go away. twitter . Torii
