從 arrays 數組創建一個新數組

Question

我有這個 arrays 數組：

let a = [

["i was sent", "i do"],
["i was sent", "i sent"],
["to protect you", "to find you"]

]

我想從中返回這個數組：

b = ["i was sent = i do", "i was sent = i sent", "to protect you = to find you"]

我怎樣才能做到這一點？

我曾嘗試使用 map，例如let b = a.map(s => s + ' = '); 但它不會做這項工作？

Answer 1

 let a = [ ["i was sent", "i do"], ["i was sent", "i sent"], ["to protect you", "to find you"] ] let result = a.map(x => x.join(" = ")) console.log(result)

Answer 2

假設你的內部 arrays 總是有兩個元素：

 let a = [ ["i was sent", "i do"], ["i was sent", "i sent"], ["to protect you", "to find you"] ] let b = a.map(el => `${el[0]} = ${el[1]}`); console.log(b);

Answer 3

您可以使用 for 循環遍歷數組，並加入每個二維 arrays。 你可以使用這樣的東西：
for(var i = 0; i < array.length; i++) { array[i] = array[i][0] + " = " + array[i][1]; }

Answer 4

礦...

 let a = [ [ "i was sent", "i do"], [ "i was sent", "i sent"], [ "to protect you", "to find you"] ] const jojo=([x,y])=>x+' = '+y let b = a.map(jojo) console.log ( b )