Npm cache checker
Simple Promise-based utility to check if npm packages are cached.
Example below will grab dependencies from package.json and
check if those packages are cached.
var cacheChecker = new CacheChecker();
cacheChecker.then(function(result) {
// result is true or false
});Optionally, you can point to package.json of your choosing.
var cacheChecker = new CacheChecker('path/to/package.json');
cacheChecker.then(function(result) {
// result is true or false
});