Rana Hasnain Khan

Python How-To's

  1. Fix the TypeError: Object of Type 'Int64' Is Not JSON Serializable
  2. Fix the TypeError: 'float' Object Cannot Be Interpreted as an Integer in Python
  3. Fix the Python TypeError: List Indices Must Be Integers, Not List
  4. IndexError: Tuple Index Out of Range in Python
  5. ZeroDivisionError: Float Division by Zero in Python
  6. No Module Named CV2 in Mac in Python
  7. Python PermissionError: [WinError 5] Access Is Denied
  8. Python TypeError: 'DataFrame' Object Is Not Callable
  9. Python TypeError: Can't Convert 'List' Object to STR
  10. Python Is Not Recognized in Windows 10
  11. Add Attribute to Object in Python
  12. Add Selenium Web Driver Wait in Python
  13. Download Anaconda in Python
  14. File Naming Conventions in Python
  15. Find Element by Text Using Selenium in Python
  16. Install YAML in Python
  17. Perform Element-Wise Addition in Python
  18. The getAttribute() Function in Selenium Python
  19. The send_keys() Function in Selenium Python
  20. Use Pip to Install Python Version
  21. Check if Variable Is String in Python
  22. Divide a List by a Number in Python
  23. Background Process in Python
  24. Get Parts of a String in Python
  25. Locust in Python
  26. Memory Leak in Python
  27. Method Overloading in Python
  28. Pexpect in Python
  29. Rabin-Karp Algorithm in Python
  30. Read Text From Images Using Tesseract in Python
  31. Address Already in Use Error in Python
  32. Convert Seconds Into Hours, Minutes, and Seconds in Python
  33. Create Package in Python
  34. Lexicographical Order in Python
  35. Longest Substring Without Repeating Characters in Python
  36. Create a List of Odd Numbers in Python
  37. Get Yesterday's Date in Python
  38. Gzip Decompression in Python
  39. Make List of Even Numbers in Python
  40. Raise Exception in Python
  41. The time Module in Python
  42. List Remove by Index in Python
  43. KFold in Python
  44. Nested for Loop in One Line in Python
  45. Pickle Load in Python
  46. Process Finished With Exit Code 0 in Python
  47. Spline Interpolation in Python
  48. Text Wrap in Python
  49. SCP in Python
  50. fetchall() in Python
  51. Lambda Function in Multiple Lines in Python
  52. Install XLRD in Python
  53. Python Import Class From Another File

TypeScript Howtos

  1. Mocha in TypeScript
  2. Ignore Next Line in TypeScript
  3. Lodash in TypeScript
  4. Add TypeScript to a React Project
  5. Tsconfig References in TypeScript
  6. Function Interface in TypeScript
  7. Merge Objects TypeScript
  8. TypeScript in Operator
  9. Create Table in React TypeScript
  10. HTTP Request in TypeScript
  11. Jest Mock in TypeScript
  12. Abstract Method in TypeScript
  13. Install Specific Version of TypeScript
  14. Use Any Data Type in TypeScript
  15. Check if a String Has a Certain Text in TypeScript
  16. Import JavaScript in TypeScript
  17. Compare Strings in TypeScript
  18. Extend Type in TypeScript
  19. Record in TypeScript
  20. Run File in TypeScript
  21. TypeScript forEach() Loop
  22. TypeScript Typeof
  23. Convert String Into Number in TypeScript
  24. Date Object in TypeScript
  25. Get Current Date and Time in TypeScript
  26. Interface Array of Objects in TypeScript
  27. String Enum in TypeScript
  28. The console.log Method in TypeScript

Angular Howtos

  1. Textarea vs Input in AngularJS
  2. Array of Objects in Angular
  3. Export Data to Excel in Angular
  4. Radio Buttons in Angular
  5. SetInterval in AngularJS
  6. Best Backend for AngularJS
  7. Blur Event in Angular
  8. Controller as Syntax in AngularJS
  9. Debug AngularJS in Chrome
  10. Dirty Checking in AngularJS
  11. Display Image in AngularJS
  12. Make a Pie Chart in AngularJS
  13. Ng-Keypress in AngularJS
  14. onFocusEvent in Angular
  15. Parse JSON in Angular
  16. Set Cookie in Angular
  17. Get Current Date in Angular
  18. Use $broadcast() in AngularJS
  19. Create a Navbar in Angular
  20. Grid Table in AngularJS
  21. WebSocket in Angular
  22. Add Conditional Classes With ngClass in Angular
  23. Angular then() Method
  24. Uninstall and Install Angular CLI
  25. Add Class in Angular
  26. Component vs. Module in Angular
  27. Delete Component in Angular
  28. Upload Image in Angular
  29. Use ngSwitch in Angular
  30. Router Link in Angular
  31. Router Navigate in Angular
  32. Angular ngAfterViewInit Method
  33. Folder Structure in AngularJS
  34. The Ng-Options in AngularJS
  35. Install Bootstrap in Angular
  36. Providers in AngularJS
  37. Date Picker in Angular
  38. Loading Spinner in AngularJs
  39. The if...else Statement in Angular
  40. View Child in Angular
  41. Directive Link Function in AngularJS
  42. Element Find by Class Name in Angular
  43. forEach in Angular
  44. Show and Hide in Angular
  45. Update Angular CLI
  46. Angular stateParams
  47. AngularJs $watchcollection
  48. ElementRef in Angular
  49. Rich Text Editor in Angular
  50. Use q all in AngularJs
  51. The for Loop in Angular
  52. Bootstrap in Angular
  53. Google Maps in Angular
  54. Ng-Repeat Filter in Angular
  55. Use jQuery in Angular 2
  56. Store Data in Angular Local Storage
  57. Angular Subscribe() Method
  58. Create New Component in Angular
  59. Copy in Angular
  60. On Load in Angular
  61. Pagination in Angular
  62. Selected Option in Angular Dropdown
  63. Access Parent Scope From the Child Controller in Angular
  64. Carousel in Angular
  65. Check Angular Version
  66. Difference Between Angular Service and Angular Factory
  67. Download File in Angular
  68. Session Storage in Angular
  69. Set Default Value in Angular
  70. Drag and Drop in Angular
  71. Event Emitter in Angular
  72. Data Tables in Angular
  73. Date Format in Angular
  74. getElementById Replacement in Angular
  75. List of All Mat Icons in Angular
  76. The setTimeout() Function in Angular
  77. Upload File in Angular

C# Howtos

  1. Compile C# in Command Line
  2. Convert List Into Dictionary in C#

Python Matplotlib Howto's

  1. Plot Horizontal Line in Python

PHP Howtos

  1. Check if a Property Exists in PHP
  2. Get Time Zone in PHP
  3. Write to an Error Log File in PHP
  4. Convert a String Into an Array in PHP

React Howtos

  1. Dispatch in React
  2. Run iOS in React Native
  3. React and PHP Together
  4. React Router Authentication
  5. Super vs Super(props) in React
  6. Check Box onChange in React
  7. Emoji in React
  8. Import JSON File in React
  9. onDoubleClick in React
  10. React onClick Pass Parameter
  11. React Reload Component
  12. Show and Hide Element in React
  13. Z-Index in React Native
  14. Global Variable in React
  15. Import Styles in React
  16. React onSubmit
  17. Button onClick Event in React
  18. Style Hover in React
  19. Hot Reloading in React Native
  20. ReactDOM Render in React
  21. Scroll to Top in React
  22. Clear Cache in React Native
  23. Bootstrap Dropdown in React
  24. Navbar in React
  25. Allow CORS in React
  26. React Syntax in Sublime
  27. setState and prevState in React
  28. Use Callback With the useState Hooks in React
  29. What Is Isomorphic React
  30. Image Tag in React
  31. Session Storage in React
  32. Fonts in React
  33. Redirect to External URL in React
  34. Render HTML String in React
  35. Center Text in React
  36. Export Default in React
  37. React Logo
  38. The if Statement in React
  39. Disable Button in React
Rana Hasnain Khan avatar Rana Hasnain Khan avatar

Rana is a computer science graduate passionate about helping people to build and diagnose scalable web application problems and problems developers face across the full-stack.