Method clear

src/webgl/p5.DataArray.js:19–21

* A "soft" clear, which keeps the underlying storage size the same, but * empties the contents of its dataArray()

()

   * empties the contents of its dataArray()
   */
  clear() {
    this.length = 0;
  }

  /**
   * Can be used to scale a DataArray back down to fit its contents.