如何在FUNCTION中返回多变数组的输出

Question

can multidimensions array return in function to display the all value in the 2dimentions array ??

 function display(arr) { } const result = display([ ["str", 1], ["str2", 2], ["str3", 3] ]) const result2 = display([ ["str", 1], ["str2", 2], ["str3", 3], ["str4", 4] ]) const result3 = display([ ["str", 1], ["str2", 2] ]) console.log(result) console.log(result2) console.log(result3) 

i know console.log might work, how about return it in function ?

the output i want it // str = 1, str2 = 2, str3 = 3 // str = 1, str2 = 2, str3 = 3 , str4 = 4 // str = 1, str2 = 2

Answer 1

This work for your code :

function display(arr) {
    return arr.map((key) => `${key[0]} = ${key[1]}`)
}

const result = display([
["str", 1],
["str2", 2],
["str3", 3]
]).join(', ')

// result = "str = 1, str2 = 2, str3 = 3"