Imagine you have a file named file1.js containing an array.
var array = [data, more data, ...];
Are there any methods to access this array from another file? If not, what are the typical practices for managing a large array within a file?
Imagine you have a file named file1.js containing an array.
var array = [data, more data, ...];
Are there any methods to access this array from another file? If not, what are the typical practices for managing a large array within a file?
A few years back, the common method to achieve this would be to make it a global variable and carefully manage the order in which your scripts are loaded. This can still be done today. However, in the present day, there are numerous other approaches available. These include utilizing some form of module system such as requirejs, commonjs, browserify, nodejs's native module system, and ES6 import/export feature.
Typically, in most scenarios, you would implement something similar to the following (the keyword "like" is used as there may be variations):
File 1
module.exports.bigArray = [data];
File 2
var bigArray = require('./file1').bigArray;
In order to access the content, ensure that file1.js is loaded by the browser prior to the other file, and that the variable array is accessible.
<script type="text\javascript" src="file1.js"></script>
<script type="text\javascript" src="differentFile.js"></script>
If feasible, namespace them to prevent array from being part of the global scope.
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