What's the meaning of 'trim' when use in mongoose?

Question

The link is http://mongoosejs.com/docs/api.html#schema_string_SchemaString-trim

I'm beginner in mongoosejs. I just don't get it...

I saw this question How to update mongoose default string schema property trim? but don't understand why trim. Im creating my first schema today like a 'hello world'.

I saw this to https://stackoverflow.com/tags/trim/info ... but when i need to use it, i want to learn more about it. Im looking for an explanation for a beginner...

user_10669735 · Answer

Using trim will help in removing the white spaces present (beginning and ending of the string) in the string that you want to save to the DB like

"ABC " , "     ABC  ",

will be saved in the form

"ABC"

user_13257252 · Answer

trim in mongoose use to remove the white spaces from the strings

What's the meaning of 'trim' when use in mongoose?

3 Answers