Node.js Express和Ejs尝试将变量从js文件传递到ejs文件

Question

My folder structure is public-js-color.js and the ejs file is views-index.ejs

How do I pass a variable from the color.js file into the index.ejs file so I can display it to the user. Please forgive me if this is simple, just learning node and google has been no help.

Answer 1

when you define your express route and call render you want to pass to the view as the second parameter.

var variablesToPass = {
  homie: 'who is your homie?'
};

app.get('/', function(req, res) {
  return res.render('index', variablesToPass);
});

You will be able to render homie on your ejs home template by typing <%= homie %>

Also if you would like the variables to be available across your entire application a useful middlware function you could create is.

app.use(function(req, res) {
  res.locals.homie = "I'm a homie thats available everywhere";
});