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@brownsmith
Created May 29, 2018
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Classes and composition
// ##### CLASS INHERITANCE:
class GuitarAmp {
constructor ({ cabinet = 'spruce', distortion = '1', volume = '0' } = {}) {
Object.assign(this, {
cabinet, distortion, volume
});
}
}
class BassAmp extends GuitarAmp {
constructor (options = {}) {
super(options);
this.lowCut = options.lowCut;
}
}
class ChannelStrip extends BassAmp {
constructor (options = {}) {
super(options);
this.inputLevel = options.inputLevel;
}
}
const guitaramp = new GuitarAmp();
const bassamp = new BassAmp();
const channelstrip = new ChannelStrip();
console.log('guitaramp', guitaramp);
console.log('bassamp', bassamp);
console.log('channel', channelstrip);
// ##### COMPOSITION EXAMPLE:
const distortion = { distortion: 1 };
const volume = { volume: 1 };
const cabinet = { cabinet: 'maple' };
const lowCut = { lowCut: 1 };
const inputLevel = { inputLevel: 1 };
const GuitarAmpComp = (options) => {
return Object.assign({}, distortion, volume, cabinet, options);
};
const BassAmpComp = (options) => {
return Object.assign({volume: 2}, lowCut, cabinet, options);
};
const ChannelStripComp = (options) => {
return Object.assign({}, inputLevel, lowCut, volume, options);
};
const guitarampcomp = GuitarAmpComp();
const bassampcomp = BassAmpComp();
const channelstripcomp = ChannelStripComp();
console.log('guitarampcomp', guitarampcomp);
console.log('bassampcomp', bassampcomp);
console.log('channelstripcomp', channelstripcomp);
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