Keyword Analysis & Research: what is first class function in javascript

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what is first class function in javascript	0.78	0.6	8374	97	42
what	0.11	0.9	9985	8	4
is	1.42	0.3	2774	88	2
first	0.93	0.1	886	88	5
class	0.17	0.9	5151	87	5
function	0.26	0.3	6651	3	8
in	0.72	1	7153	8	2
javascript	0.4	1	556	9	10

Keyword	CPC	PCC	Volume	Score
what is first class function in javascript	1.26	0.7	5091	61