Spaces between elements of lists in dart - dart

Question

products = ["Coke",23,34];
I want to print this list into proper output view, means the spaces should remain same in any compiler.
ItemName Price Cost
Coke 23 34

Answer 1

Something like this?
void main() {
printProducts(
header: const ['ItemName', 'Price', 'Cost'],
products: [
["Coke", 23, 34]
],
columnSpace: 12,
);
// ItemName Price Cost
// Coke 23 34
}
/// Method that prints a list of products to standout output in a table form.
/// The method takes the following three arguments:
///
/// * [header] defines the first row of the table and should be a list of names
/// for each column.
///
/// * [products] List of products (where each product is defined as a
/// List<Object> where each element is column value.
///
/// * [columnSpace] defines the space reserved for each column. This value
/// should be set to a value larger that the widest item (including header)
void printProducts({
required List<String> header,
required List<List<Object>> products,
required int columnSpace,
}) {
// StringBuffer is used so we can add more data to a line of String as we go
// through each column of data. This is needed since the "print" function will
// automatically add a newline after printing to the screen.
final stringBuffer = StringBuffer();
// Start with the header and then iterate over each product. The
// [header, ...products] syntax means that we defines a new list containing
// first "header" and then all elements (... means we add all elements from
// another iterable compatible object (e.g. list)) of "products". We are then
// iterating over this new list.
for (final row in [header, ...products]) {
// Go though each column in our row. We use a normal for-loop since we want
// to be able to check if we are at the last element.
for (var i = 0; i < row.length; i++) {
// Write our column to the StringBuffer. We checks if we are at the last
// element since if that is the case, we don't need to add the padding to
// the right.
//
// The `padRight` will check the size of the String and add padding
// (by default, it uses spaces) to make sure the String is a given length.
stringBuffer.write(
i == header.length - 1
? row[i]
: row[i].toString().padRight(columnSpace),
);
}
// Print the content of our StringBuffer (contains one line of data).
print(stringBuffer);
// Clear the StringBuffer so it does not contain any data. We can then reuse
// it for the next line of data.
stringBuffer.clear();
}
}