Method Chains

Create an instance and use its method result immediately.

method_chain.js

const text = "trace";
class TextTool {
  constructor(text) {
    this.text = text;
  }

  upper() {
    return this.text.toUpperCase();
  }
}

const output = new TextTool(text).upper();

console.log("text=" + text);
console.log("output=" + output);

method-chain For short-lived objects, creating an instance and using its method result in the next expression keeps the code compact while still showing the class behavior.