How can I pass the variables port,host,database into this function?
//myjs.js
var redisCaller = function(port,host,database){
};
module.exports = new redisCaller();
if I do:
var myjs = require('./myjs');
how do I pass those variables?
seems like the only way to do it is like this:
module.exports = function(port,host,database){
return new redisCaller(port,host,database);
}
Change myjs.js to:
module.exports = redisCaller;
Then you can do:
var myjs = require('./myjs')(port,host,database);
new call every time you require your module though. Or maybe you do?
You don't.
The way you've set up that code makes it impossible to pass variables in, unless you tweak the require. Which then makes you potentially have to know about the port/host/database in any file you use it in.
Instead, maybe just use an 'init'.
For example, app.js -
var redisCaller = require('./myjs');
redisCaller.init(port, host, database);
And the myjs..
var redisCaller = function(){
this.init = function (port,host,database) {
this.connection = ...
}
this.getConnection = function () {
if(!this.connection) { throw "Need to run init first"; }
return this.connection;
}
};
module.exports = new redisCaller();
Anywhere you need the connection...
var redisCaller = require('./myjs');
var conn = redisCaller.getConnection();
//or
var redisCaller = require('./myjs').getConnection();
It's a bit more code, but at least it's easy to reuse across files.. assuming that was your intention.
