javascript - Is it bad practice to place an if/else inside of another else? -

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if() {  }else {     if (isalternaterow=='true')         isalternaterow = 'false';     else         isalternaterow = 'true'; }

can place if , else statement inside of else statement?

try

isalternaterow = !isalternaterow;

(updated show in code)

var isalternaterow = false;  if(/* -- insert equation here -- */)  {  // }   else  {     isalternaterow = !isalternaterow; }

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