previousColumnIndex(from) {
        if (from == undefined) {
            from = this.cursor;
        }
        const currentColumn = parseInt((from.column - 1) / (this.layouteer.columnSize + 1));
        return (currentColumn) * (this.layouteer.columnSize + 1);
    }
/**
     * Position of the previous (left) column.
     * 
     * @param {LayouteerEditorCell} from From which cell search for closest left column. If undefined current cursor position is used.
     */
Position of the previous (left) column.

@param {LayouteerEditorCell} from From which cell search for closest left column. If undefined current cursor position is used.
Position of the previous ( left ) column . @param { LayouteerEditorCell } from From which cell search for closest left column . If undefined current cursor position is used .
previousColumnIndex(from) {
        if (from == undefined) {
            from = this.cursor;
        }
        const currentColumn = parseInt((from.column - 1) / (this.layouteer.columnSize + 1));
        return (currentColumn) * (this.layouteer.columnSize + 1);
    }
previousColumnIndex ( from ) { if ( from == undefined ) { from = this . cursor ; } const currentColumn = parseInt ( ( from . column - 1 ) / ( this . layouteer . columnSize + 1 ) ) ; return ( currentColumn ) * ( this . layouteer . columnSize + 1 ) ; }
Position of the previous (left) column.
Position of the previous ( left ) column .