Keyword Analysis & Research: what is callback in node js

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what is callback in node js	1.77	0.6	6014	6	27
what	1.27	0.9	9181	59	4
is	0.55	0.5	315	10	2
callback	0.25	0.1	1637	55	8
in	1.94	0.9	1358	68	2
node	1.81	1	1739	59	4
js	0.88	0.6	6403	60	2

Keyword	CPC	PCC	Volume	Score
what is callback in node js	0.5	0.2	7490	80