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Build (escape) regexp in MongoDB?
For this, use find() along with //i. Let us create a collection with documents −
> db.demo696.insertOne({Message:"/Good/"});
{
"acknowledged" : true,
"insertedId" : ObjectId("5ea6d664551299a9f98c9391")
}
> db.demo696.insertOne({Message:"(good)"});
{
"acknowledged" : true,
"insertedId" : ObjectId("5ea6d67a551299a9f98c9392")
}
> db.demo696.insertOne({Message:"/Bye/"});
{
"acknowledged" : true,
"insertedId" : ObjectId("5ea6d68b551299a9f98c9393")
}
> db.demo696.insertOne({Message:"(GOOD)"});
{
"acknowledged" : true,
"insertedId" : ObjectId("5ea6d693551299a9f98c9394")
}Display all documents from a collection with the help of find() method −
> db.demo696.find();
This will produce the following output −
{ "_id" : ObjectId("5ea6d664551299a9f98c9391"), "Message" : "/Good/" }
{ "_id" : ObjectId("5ea6d67a551299a9f98c9392"), "Message" : "(good)" }
{ "_id" : ObjectId("5ea6d68b551299a9f98c9393"), "Message" : "/Bye/" }
{ "_id" : ObjectId("5ea6d693551299a9f98c9394"), "Message" : "(GOOD)" }Following is the query to escape regexp −
> db.demo696.find({Message:/good/i});This will produce the following output −
{ "_id" : ObjectId("5ea6d664551299a9f98c9391"), "Message" : "/Good/" }
{ "_id" : ObjectId("5ea6d67a551299a9f98c9392"), "Message" : "(good)" }
{ "_id" : ObjectId("5ea6d693551299a9f98c9394"), "Message" : "(GOOD)" }
Updated on: 14-May-2020
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