Function componentDidUpdate

src/DataSheet.js:464–470

(prevProps, prevState)

  }

  componentDidUpdate (prevProps, prevState) {
    let { start, end } = this.state
    let prevEnd = prevState.end
    if (!isEmpty(end) && !(end.i === prevEnd.i && end.j === prevEnd.j) && !this.isSelectionControlled()) {
      this.props.onSelect && this.props.onSelect({ start, end })
    }
  }

  isSelected (i, j) {
    const {start, end} = this.getState()