use !== to conform with coding practice in all other inequality comparisons in the file
use !== to conform with coding practice in all other inequality comparisons in the file

rlugojr/cytoscape.js,KonstantinShemyak/cytoscape.js,rlugojr/cytoscape.js,KonstantinShemyak/cytoscape.js,soomin-maeng/cytoscape.js,soomin-maeng/cytoscape.js