want mongo query to do string regex start && contains && end

问题

I want to mongo query with regex which will return the document

name match start with 'abc' and

name match contains 'efg' and

name match end with 'ijk'

var start =  'abc[\\s\\S]*';
var cont =  '[\\s\\S]*efg[\\s\\S]*';
var end =  '[\\s\\S]*ijk';

db.getCollection().find({
 "$and":[
    {
        "name":{"$regex":new RegExp('^' + start + '$', 'i')}
    },
    {
        "name":{"$regex":new RegExp('^' + cont + '$', 'i')}
    },
    {
        "name":{"$regex":new RegExp('^' + end + '$', 'i')}
    }]
})

This runs very slow need some better query or suggestion...

来源：https://stackoverflow.com/questions/44738577/want-mongo-query-to-do-string-regex-start-contains-end