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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 the number occurrences 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. How to use count and group by at the same select statement
  13. COUNT(*) vs. COUNT(1) vs. COUNT(pk): which is better?
  14. Length of an integer in Python
  15. Counting the Number of keywords in a dictionary in python
  16. Counting the occurrences / frequency of array elements
  17. How to count the occurrence of certain item in an ndarray in Python?
  18. count (non-blank) lines-of-code in bash
  19. Pandas count(distinct) equivalent
  20. How do I get the count of a Swift enum?
  21. Count occurrences of a char in plain text file
  22. How to count the number of files in a directory using Python
  23. postgresql COUNT(DISTINCT …) very slow
  24. How to count the number of true elements in a NumPy bool array
  25. SQL: How to get the count of each distinct value in a column?
  26. SQL query for finding records where count > 1
  27. Linq with group by having count
  28. In Firebase, is there a way to get the number of children of a node without loading all the node data?
  29. Fastest way to determine if record exists
  30. Count number of records returned by group by
  31. Count unique values
  32. Search for string and get count in vi editor
  33. PHP: Count a stdClass object
  34. SQLite Query in Android to count rows
  35. How to count instances of character in SQL Column
  36. How can I tell how many objects I've stored in an S3 bucket?
  37. Count number of occurrences of a pattern in a file (even on same line)
  38. select count(*) from table of mysql in php
  39. Count number of objects in list
  40. Lists: Count vs Count()
  41. Count with if condition in mysql query
  42. Count how many files in directory php
  43. (How) can I count the items in an enum?
  44. Get number of digits with JavaScript
  45. Using GroupBy, Count and Sum in LINQ Lambda Expressions
  46. How can I count the number of elements of a given value in a matrix?
  47. Group by & count function in sqlalchemy
  48. count(*) vs count(column-name) - which is more correct?
  49. Fast way to discover the row count of a table in PostgreSQL
  50. Most efficient way to get table row count