ES6阵列破坏性怪异

Question

谁能解释，为什么ES6阵列解构会发生以下情况？let a, b, c[a, b] = ['A', 'B'][b, c] = ['BB', 'C']console.log(`a=${a} b=${b} c=${c}`)// expected: a=A b=BB c=C// actual:   a=BB b=C c=undefinedhttp://codepen.io/ronkot/pen/WxRqXg?editors=0011

Answer 1

我相信您忘记了换行符“;”。下面是更正的代码。请试试：

let a,b,c

[a, b] = ['A', 'B'];

[b, c] = ['BB', 'C'];

console.log(`a=${a} b=${b} c=${c}`)