Skip to content

Closure and Memory Leaks

IT Notes → Javascript @ December 22, 2020

  • Returning a function literal created as an internal object within another function, and assigning it to a variable in the calling application, is known as closure in JavaScript.
  • function leakMemory() {
  var el = document.getElementById('el');
  var o = { 'el': el };
  el.o = o;
}
  • Accidental closure can create memory leaks as above.

Related Posts

  1. Basics ( IT Notes → Javascript )
  2. Scripting Tag ( IT Notes → Javascript )
  3. Data Types ( IT Notes → Javascript )
  4. Objects ( IT Notes → Javascript )
  5. Array ( IT Notes → Javascript )
  6. Regex ( IT Notes → Javascript )
  7. Functions ( IT Notes → Javascript )
  8. Call Back Functions ( IT Notes → Javascript )
  9. Events ( IT Notes → Javascript )
  10. Object Oriented Programming ( IT Notes → Javascript )
  11. JSON ( IT Notes → Javascript )
  12. General ( IT Notes → Javascript )
  13. Debugging ( IT Notes → Javascript )
  14. Abbreviations ( IT Notes → Abbreviations )
  15. OOP Concepts or Object Oriented Programming Concepts ( IT Notes → Object Oriented Programming )
  16. General ( IT Notes → JQuery )
  17. Operators ( IT Notes → PHP )
  18. Errors and Exceptions ( IT Notes → PHP )
  19. Arrays ( IT Notes → PHP )
  20. XML ( IT Notes → PHP )
  21. Web Service ( IT Notes → PHP )
  22. Streams and Network Programming ( IT Notes → PHP )
  23. Miscellaneous ( IT Notes → PHP )
  24. Namespace ( IT Notes → C# )
  25. Parameter Passing ( IT Notes → C# )
  26. Functions ( IT Notes → C# )
  27. Generics ( IT Notes → C# )
  28. Delegate ( IT Notes → C# )
  29. Anonymous Types ( IT Notes → C# )
  30. Directives ( IT Notes → C# )
  31. LINQ ( IT Notes → C# )
  32. Performance For Generics ( IT Notes → C# )
  33. C# 4.0 ( IT Notes → C# )
  34. Physical and Relational Data Model ( IT Notes → Database )
  35. Data Normalization ( IT Notes → Database )
  36. Create Table ( IT Notes → Database → SQL )
  37. Import Data ( IT Notes → Database → SQL )
  38. Select ( IT Notes → Database → SQL )
  39. Create ( IT Notes → Database → SQL )
  40. View ( IT Notes → Database → SQL )
  41. Different Types of Testing ( IT Notes → Testing )
  42. SAS 70 Type II Audit – Data Security ( IT Notes → Testing )
  43. Models ( IT Notes → Testing )
  44. Tracking Defects ( IT Notes → Testing )
  45. Silk Test ( IT Notes → Testing )
  46. General ( IT Notes → SEO )
  47. Introduction ( IT Notes → Database → Oracle )
  48. Miscellaneous ( IT Notes → Database → Oracle )
  49. IT Notes ( IT Notes )
  50. General ( IT Notes → Project Management )
0 0 votes
Article Rating
Subscribe
Notify of
guest
0 Comments
Inline Feedbacks
View all comments
0
Would love your thoughts, please comment.x
()
x