1. string-matching - check if string contains javascript - How to check whether a string contains a substring in JavaScript?
  2. branch - git clean not removing untracked files - How to remove local (untracked) files from the current Git working tree
  3. git-checkout - git checkout remote branch and track - How do I check out a remote Git branch?
  4. idioms - javascript - the function and var are known as keyword - var functionName = function() {} vs function functionName() {}
  5. date - java timezone - Why Is Subtracting These Two Times (in 1927) Giving A Strange Result?
  6. parameter-passing - call by value and call by reference in java geeksforgeeks - Is Java “pass-by-reference” or “pass-by-value”?
  7. difference between string and string in java - What is the difference between String and string in C#?
  8. python main function - What does if __name__ == “__main__”: do?
  9. conditional-operator - python ternary assignment - Does Python have a ternary conditional operator?
  10. javascript-objects - remove key from object javascript es6 - How do I remove a property from a JavaScript object?
  11. python metaclass vs inheritance - What are metaclasses in Python?
  12. user-interface - android - dp/sp or folio - What is the difference between “px”, “dip”, “dp” and “sp”?
  13. python check if directory exists - How do I check whether a file exists without exceptions?
  14. git ignore untracked files - How to make Git “forget” about a file that was tracked but is now in .gitignore?
  15. javascript - async function not returning value - How do I return the response from an asynchronous call?
  16. grep - find files containing text linux - How do I find all files containing specific text on Linux?
  17. equality - double equals vs triple equals javascript - Which equals operator (== vs ===) should be used in JavaScript comparisons?
  18. http - difference between put and post in api testing - PUT vs. POST in REST
  19. javascript import function from another file - How do I include a JavaScript file in another JavaScript file?
  20. textselection - css - disable text selection react - How to disable text selection highlighting