Python & Javascript Map one list vs Two lists

Python Map one list

In [119]: a
Out[119]: [1, 2, 3]

In [120]: list(map(lambda x : 100* x , a))
Out[120]: [100, 200, 300]

Python Map Two list

In [116]: a
Out[116]: [1, 2, 3]

In [117]: b
Out[117]: [10, 20, 30]

In [118]: list(map(lambda x, y : x + y , a,b))
Out[118]: [11, 22, 33]

Using Operator

In [124]: from operator import add

In [125]: a
Out[125]: [1, 2, 3]

In [126]: b
Out[126]: [10, 20, 30]

In [127]: list(map(add, a, b))
Out[127]: [11, 22, 33]

In [128]: from operator import mul

In [129]: list(map(mul, a, b))
Out[129]: [10, 40, 90]

In [130]: 

---

JS Map One, Two list

a = [1,2,3]
b = [10,20,30]

// Map 1 list
console.log('Map 1 ist')
result = a.map((value)=>value*10)
console.log(result);

// Map 2 lists
console.log('Map 2 lists')
result = a.map((value,index) => value * b[index])
console.log(result);

Output

inakamono@ninja MINGW64 ~/wk/coding/hello_node
$ node mapping.js
Map 1 ist
[ 10, 20, 30 ]
Map 2 lists
[ 10, 40, 90 ]

本文地址：https://blog.csdn.net/fimtestxyz/article/details/109257653