for-of

for (let angle of ViewportAngles) {
      var checked = this.props.viewAngle === angle;
      viewAngleOptions.push(
        <div className="viewAngle">
          <input
            type="radio"
            name="viewportAngles"
            id={angle}
            value={angle}
            key={angle}
            checked={this.props.checked}
            onChange={this._onChangeView} />
          <label htmlFor={angle}>{angle}</label>
        </div>
      );
    }