changes to json file are not reflectled in the console logs

Asked May 29 '21 at 08:12

Active Jun 03 '21 at 14:50

Viewed 31 times

Consider the following file structure:

├─ log.js
├─ test.js
└─ file.json

log.js exports a function that logs the contents of file.json like :

// log.js
exports.logFile = () => {
    console.log(require('./file.json'));
};

I'm calling this function every second in test.js like so:

// test.js
setInterval(() => {
    require('./log.js').logFile();
}, 1000);

Now, when I change file.json while log.js is running, none of my changes are reflected in the logs, i.e. it keeps printing the same (initial) value every second.

I fail to understand why this is happening, shouldn't it show the changes?

edited Jun 03 '21 at 14:50

asked May 29 '21 at 08:12

Spack Jarrow

See https://stackoverflow.com/questions/21588279/node-js-caching-json – François Huppé May 29 '21 at 08:15
Check out this question: https://stackoverflow.com/questions/40946522/how-to-reload-a-required-module-at-runtime. I think it relates to your question. The file is already loaded, so it makes little sense for JS to reload it each iteration as that would be very inefficient. – Mitchell van Zuylen May 29 '21 at 08:15
1

require() caches everything it loads... – François Huppé May 29 '21 at 08:15

changes to json file are not reflectled in the console logs

0 Answers0