问嵌套过滤器不起作用

EN

// Build structures
var structs = curRoom.find(FIND_CONSTRUCTION_SITES, {
    filter: (structure) => {
        return
            _.filter(Memory.jobs.worker.normal,
                (job) => {
                    return job.id == structure.id;
                }).length == 0 // Test if this structure is already in the queue
            && _.filter(Game.creeps,
                (creep) => {
                    return creep.memory.curJob != undefined && creep.memory.curJob.id == structure.id;
                }).length == 0; // Test if a creep is already working on this structure
    }
});

console.log(<filter1>); // true

console.log(<filter2>); // true

console.log(<filter1>, <filter2>) // true true

console.log(<filter1> && <filter2>