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Feb 22nd, 2018
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  1. function makeFunc() {
  2. var name = "Mozilla";
  3. function displayName() {
  4. alert(name);
  5. }
  6. return displayName;
  7. };
  8.  
  9. var myFunc = makeFunc();
  10. myFunc();
  11.  
  12.  
  13. function makeAdder(x) {
  14. return function(y) {
  15. return x + y;
  16. };
  17. };
  18.  
  19. var add5 = makeAdder(5);
  20. var add10 = makeAdder(10);
  21.  
  22. console.log(add5(2)); // 7
  23. console.log(add10(2)); // 12
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