const Redis = require("ioredis");

const redis = new Redis({

    port: 6300, // Redis port

    host: '192.168.50.111', // Redis host

    password: '123',

    db: 0,

});

const result3 = redis.eval(`return redis.call('MSET', KEYS[1],ARGV[1], KEYS[2],ARGV[2])`, 2, ['testKey1', 'testKey2', 'val1', 'val2'])

async function eval() {

    let str = await result3;

    console.log(str)

    // await redis.evalTest('testKey1', 'testKey2', 'val1', 'val2');

    const result = await redis.get('testKey1');

    const result2 = await redis.get('testKey2');

    console.log(result, result2);

}

eval()
执行结果

参照： https://www.runoob.com/redis/scripting-eval.html

参照文档可知道： keys全部写在前面，中间2是key的数量，val值后面排着写

const luaScript = `return redis.call('MSET', KEYS[1],ARGV[1], KEYS[2],ARGV[2])`;

redis.defineCommand("evalTest", {

    numberOfKeys: 2,

    lua: luaScript,

})

async function eval() {

    await redis.evalTest('testKey1', 'testKey2', 'val1', 'val2');

    const result = await redis.get('testKey1');

    const result2 = await redis.get('testKey2');

    console.log(result, result2); // val2

}

eval();
执行结果