Method constructor

src/js/tether.js:121–138

(options)

class TetherClass extends Evented {
  constructor(options) {
    super();
    this.position = this.position.bind(this);

    tethers.push(this);

    this.history = [];

    this.setOptions(options, false);

    TetherBase.modules.forEach((module) => {
      if (!isUndefined(module.initialize)) {
        module.initialize.call(this);
      }
    });

    this.position();
  }

  setOptions(options, pos = true) {
    const defaults = {