javascript snippets

javascript_snippets.js

// change replace all of substring
str.replace(/foo/g, "bar")

// destructuring: remove attribute and create new object 
const { json, ...withoutJson } = data

// get blob from any path or url
const getBlob = async (path: string) => {
  return fetch(path).then(res => res.blob())
}

// method chaining
const dog = {
  is: null,
  log: () => console.log(this.is),
  bark() {
    this.is = "woofing";
    this.log();
    return this;
  },
  walk() {
    this.is = "walking";
    this.log();
    return this;
  },
  eat() {
    this.is = "eating";
    this.log();
    return this;
  }
};

dog
  .bark()
  .eat()
  .walk();