mongodb - Error while inserting object into database -

in mongodb while inserting object database giving error referenceerror: writeresult not defined

> use school switched db school > student = { "name":"binit", "age": 24, "subjects": ["math", "science", "litrature"] } {     "name" : "binit",     "age" : 24,     "subjects" : [         "math",         "science",         "litrature"     ] } > db.school.insert(student) > writeresult({ "ninserted" : 1 }) fri jul 17 15:49:17.038 referenceerror: writeresult not defined