javascript - UI-Router States: How to make app.run with $rootScope.$on minification safe -


i'm using ui-router in app , check if order of states correct, use code this:

.value('myroutesteps', [       { uisref: 'myroute.home', valid: true },       { uisref: 'myroute.pageone', valid: false },       { uisref: 'myroute.pagetwo', valid: false },  ]) .run([         '$rootscope',         '$state',         'myroutesteps',         function ($rootscope, $state, myroutesteps) {               $rootscope.$on('$statechangestart', function (event, tostate, toparams, fromstate, fromparams) {                  var cangotostep = false;                  var tostateindex = _.findindex(myroutesteps, function (myroutestep) {                     return myroutestep.uisref === tostate.name;                  });                  console.log('tostateindex', tostateindex)                 if (tostateindex === 0) {                     cangotostep = true;                 } else {                     cangotostep = myroutesteps[tostateindex - 1].valid;                 }                 console.log('cangotostep', tostate.name, cangotostep);                  // stop state changing if previous state invalid                 if (!cangotostep) {                     // abort going step                     event.preventdefault();                 }             });         } ]);

i'm getting error on line $rootscope.$on('$statechangestart', function (event, tostate, toparams, fromstate, fromparams) { if minification.

so i've changed $rootscope.$on('$statechangestart', ['event','tostate','toparams','fromstate','fromparams', function (event, tostate, toparams, fromstate, fromparams) {

yet i'm still getting error.

update:

when @ minified code see this:

}]).run(["$rootscope", "$state", "ordersteps", function (n, t, i) {         n.$on("$statechangestart", function (n, t) {             var r = !1,                 u = _.findindex(i, function (n) {                     return n.uisref === t.name

isn't right guess...how fix? suggestions?

_.findindex can return -1 in case not found. 0 first item in array, -1 not found. cause problems here

if (tostateindex === 0) {     cangotostep = true; } else {     cangotostep = myroutesteps[tostateindex - 1].valid; }

when tostateindex -1 index of out range exception.

you want this:

if (tostateindex < 0) {     cangotostep = true; } else {     cangotostep = myroutesteps[tostateindex].valid; }

to explain how happen... when first load page, ui router go '' state, when tries go '' triggers $statechangestart. _.findindex cannot find '' in myroutesteps , tostateindex becomes -1. -1 not equal 0 falls in else block, -1 - 1 -2, myroutesteps[-2] out of range.


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