How to rewrite method js in custom module magento 2

Question

I want to rewrite method openVariableChooser in variables js called somewhere in Editor magento. But i don't know how to do that without affect to other module
File variables location in Magento_Variable/variables.js
What i have done is define my custom js over original.

"paths": {
    "Magento_Variable/variables": "My_Extension/js/custom_variables"
},

Answer 1

You can do it using module like this,

Create file, requirejs-config.js

app/code/Vendor/Modulename/view/adminhtml/requirejs-config.js

var config = {
    map: {
        '*': {
            "Magento_Variable/variables": 'Vendor_Modulename/variables',
        }
    }
};

Create app/code/Vendor/Modulename/view/adminhtml/web/variables.js file

run command, php bin/magento setup:static-content:deploy

clear cache and browser cache.