lib/rules/no-fallthrough.js
function hasBlankLinesBetween(node, token) {
    return token.loc.start.line > node.loc.end.line + 1;
}
function hasBlankLinesBetween(node, token) {
    return token.loc.start.line > node.loc.end.line + 1;
}
function hasBlankLinesBetween ( node , token ) { return token . loc . start . line > node . loc . end . line + 1 ; }
Checks whether a node and a token are separated by blank lines
@param {ASTNode} node - The node to check
@param {Token} token - The token to compare against
@returns {boolean} `true` if there are blank lines between node and token
Checks whether a node and a token are separated by blank lines