JS console.log 一个二维矩阵

Question

I have a 2d matrix of arrays:

let matrix = 
[
[a, b, c], 
[d, e, f],
[g, h, i]
].

How can i print on the console any array on new line and without commas between elements? Like this:

a b c
d e f
g h i

console.log(matrix.join('\\n')) prints any array on new line:

a, b, c
d, e, f
g, h, i

OK, but i don't want commas...

Answer 1

By improving your code, maybe you could modify it like this

const printMatrix = matrix.map((d) => d.join(" ")).join("\n")
console.log(printMatrix);

Answer 2

You can use Javascript's console.table() instead of console.log()

This will display your array in table form, making it much more readable and easy to analyse It is a little known feature, however useful when you have a multi-dimentional array.