angularjs - difference between '@' and '=' when testing directives -

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I am currently trying to get my head around the test instructions and came into some weird behavior. My code is as follows: 

  Angular Module ('tddApp', []). Directive ('weird button', function () {return} {template: '
 
 , replace: right, scope: {market1: = ', Market2:' @ '}};}); Before (each (function () () () (before html = '& lt; div odds-button market1) (' obstruction buttons directive test suite ', function () {var $ scope, scope, elem, html; before (Each module ('tddApp')) = "market" market 2 = "market" & gt; & lt; / div & gt; '; Inject (function ($ Collection, $ Rootscope) {$ scope = $ rootScope. $ New (); $ scope.market = '2/1'; Elem = angular.element (html); $ compile (elem) ($ scope); scope = elem.isolateScope (); scope. $ Apply (); });}); It is expected that ('should be created and HTML should be changed') (different There should be market in the field, work ()) (hopefully (scope.market1). Tobe ('2/1'); Hopefully (scope.market2). TB ('2/1');}) ;});   
 When I go into the market for a different scope, using two 'binding' = ', works as expected, but when I only I read '@' then it gets a string instead of 'Market'  
 
 
 < p> When you pass it by '@', then in fact it is only in priority Q will read VALUE  
 To do this, you do not have to tell angular to resolve the value of the value with the  {{}}  pattern.  
 Change it html:  
  html = '& lt; Div odds-button market1 = "market" market2 = "{{market}}" & gt; & Lt; / div & gt; ';   
 This works for me.   

 




  






























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