Adding parameter to anonymous function

Asked Apr 18 '19 at 13:31

Active Apr 18 '19 at 13:33

Viewed 50 times

In PHP, I can bind a variable to a lambda like this:

$locale = "nl_NL";
$info['t'] = function($text, $render) use ($locale) {
   return translate($text, $locale);
}

In the below code, the fullpath variable gets overwritten and contains the value of the latest call at some point.

var tree = {
    "foo.js": null,
    "bar.js": {
         "baz.js": null
    }
}

loadScriptTree(tree) {
    for (let idx in tree) {
        var fullpath = "root/" + idx;
        console.log("Loading "+fullpath);

        var subtree = tree[idx];            
        $.getScript(fullpath, function() {
            console.log(fullpath+ "loaded.");
            loadScriptTree(subtree);
        });
    }
}

How can I bind the variable to the function in JavaScript?

edited Apr 18 '19 at 13:33

asked Apr 18 '19 at 13:31

Bart Friederichs

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2

There's a `bind` method. https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_objects/Function/bind – mbojko Apr 18 '19 at 13:32
2

use `let` instead of `var` – Code Maniac Apr 18 '19 at 13:32
`root` doesn't look like it's defined? – zer00ne Apr 18 '19 at 13:32
@zer00ne it is defined. I'll update the question. – Bart Friederichs Apr 18 '19 at 13:33
1

@CodeManiac that was it, I changed `var fullpath` into `let fullpath` and it works as expected now. Thanks. – Bart Friederichs Apr 18 '19 at 13:38

Adding parameter to anonymous function

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