javascript - Requirejs ignore loading error for optional dependency -

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this question has answer here:

i'm using require.js , load library handles tracking. however, have users block loading.

since not critical part of app, still work, when tracking library fails load.

i've looked @ documentation handling errors via errbacks, config fallbacks, , global onerror function.

i thinking of like:

requirejs.onerror = function (err) {      var modules = err.requiremodules;       (var = 0; < modules.length; i++) {           if (modules[i] == 'tracking-lib') {                // great if define('modules[i]', [], null)           }      } };

similar questions (that don't solve problem):

requirejs optional dependency

null dependencies in requirejs when ajax returns 404

i have created little require plugin (code in github) can lazy-load amd modules, e.g. this:

define(["lazy!mymodule"], function(mymodule) {     mymodule.get().then( // get() returns promise         function(m) {             // handle success, module in m argument         },         function(e) {             // handle error         }     ); });

you use is. alternatively, create similar plugin, e.g. optional, without depending on require-lazy. optional plugin used as:

define(["optional!mymodule"], function(mymodule) {     // code above     // or there may way make optional! return null, if loading failed

the code my plugin might of , of course docs plugin api.

still simpler - imho dirtier - way require optional module inside client module, using global require function:

define([], function() { // use global require!!!     require(["myoptionalmodule"],         function(myoptionalmodule) {             // loaded         },         function(error) {             // load failed         }     ); });

(also take here - related last code)

in conclusion, don't think there way load module optionally plain api. have implement somehow , handle asynchronicity callbacks, above, either inside application code or in plugin.


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