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  1. How to efficiently count the number of keys/properties of an object in JavaScript?
  2. How to count the occurrences of a list item?
  3. Count occurrence of a character in a string
  4. How to sort a list of objects based on an attribute of the objects?
  5. jQuery: count number of rows in a table
  6. Find duplicate lines in a file and count how many time each line was duplicated?
  7. Counting the number of elements with the values of x in a vector
  8. How do you find the row count for all your tables in Postgres
  9. How do we count rows using Hibernate?
  10. How to get multiple counts with one SQL query?
  11. Select count(*) from multiple tables
  12. COUNT(*) vs. COUNT(1) vs. COUNT(pk): which is better?
  13. Counting the occurrences / frequency of array elements
  14. count (non-blank) lines-of-code in bash
  15. postgresql COUNT(DISTINCT …) very slow
  16. Fastest way to determine if record exists
  17. Search for string and get count in vi editor
  18. In Firebase, is there a way to get the number of children of a node without loading all the node data?
  19. Count number of records returned by group by
  20. How to count the occurrence of certain item in an ndarray in Python?
  21. (How) can I count the items in an enum?
  22. How can I tell how many objects I've stored in an S3 bucket?
  23. How can I count the number of elements of a given value in a matrix?
  24. count lines in a PHP project
  25. Fast way to discover the row count of a table in PostgreSQL
  26. How to count identical string elements in a Ruby array
  27. SQL to Entity Framework Count Group-By
  28. SQL COUNT overflow
  29. Laravel Eloquent - distinct() and count() not working properly together
  30. Speeding up row counting in MySQL
  31. How do I add two count(*) results together on two different tables?
  32. how to get the number of elements in a python list?
  33. A method to count occurrences in a list
  34. How do I get the _count in my content provider?
  35. Count number of non-NaN entries in every column of Dataframe
  36. SQL Server Count is slow
  37. How do I use XPath to count the number of nodes with a certain attribute
  38. SPARQL query and distinct count
  39. C# EPPlus OpenXML count rows
  40. Count number of columns by a condition (>) for each row
  41. How to count items in JSON data
  42. MySQL joins and COUNT(*) from another table
  43. count of entries in data frame in R
  44. Select COUNT(*) of subquery without running it twice
  45. How to count group by rows in rails?
  46. Conditional counting in Python
  47. Java count occurrence of each item in an array
  48. Django count RawQuerySet
  49. getting NSArray length/count - Objective C
  50. How do I print out the count of unique matches with grep?