In JavaScript is != same as !==

They are subtly not the same.

!= checks the value
!== checks the value and type

'1' != 1   // false (these two are the same)
'1' !== 1 // true (these two are **not** the same).

In the previous example. The first half of the expression is a string, the second half is an integer.

Related Posts:

  1. What’s the meaning of “=>” (an arrow formed from equals & greater than) in JavaScript?
  2. How do I convert a float number to a whole number in JavaScript?
  3. What does “while True” mean in Python?
  4. syntax error: unexpected token <
  5. How do you comment out code in PowerShell?
  6. How do I break a string in YAML over multiple lines?
  7. What is the difference between {} and [] in python?
  8. What does ‘&’ do in a C++ declaration?
  9. JavaScript error (Uncaught SyntaxError: Unexpected end of input)
  10. JavaScript: SyntaxError: missing ) after argument list
  11. JavaScript error (Uncaught SyntaxError: Unexpected end of input)
  12. Tab space in Markdown
  13. syntaxerror: “unexpected character after line continuation character in python” math
  14. How do you express binary literals in Python?
  15. What Does This Mean in PHP -> or =>
  16. Comments in Markdown
  17. Can someone explain __all__ in Python?
  18. How to exit a loop in Python?
  19. How can I do a line break (line continuation) in Python?
  20. How do I pass multiple parameters into a function in PowerShell?
  21. Comments in Markdown
  22. What does the /= operator mean in Python?
  23. What is the difference between syntax and semantics in programming languages?
  24. What do << or >>> in java mean?
  25. Nested JSON objects – do I have to use arrays for everything?
  26. What is the Java ?: operator called and what does it do?
  27. SyntaxError: Unexpected Identifier in Chrome’s Javascript console
  28. What do >> and << mean in Python?
  29. Is there a difference between `continue` and `pass` in a for loop in python?
  30. hat does “static” mean in C?
  31. JavaScript error (Uncaught SyntaxError: Unexpected end of input)
  32. What does `<>` mean in Python?
  33. Ternary operator (?:) in Bash
  34. What does the “at” (@) symbol do in Python?
  35. What is :: (double colon) in Python when subscripting sequences?
  36. Is there a difference between x++ and ++x in java?
  37. What does the “@” symbol do in PowerShell?
  38. What’s the u prefix in a Python string?
  39. Static Semantics meaning?
  40. What does the `and` keyword mean in OCaml?
  41. text highlight in markdown
  42. Python def function: How do you specify the end of the function?
  43. No Multiline Lambda in Python: Why not?
  44. What does @@variable mean in Ruby?
  45. How do you format an unsigned long long int using printf?
  46. What are those pipe symbols for in Ruby?
  47. Prolog “or” operator, query
  48. How do you use the ? : (conditional) operator in JavaScript?
  49. window.onload vs document.onload
  50. Fetch: POST JSON data
  51. JavaScript hide/show element
  52. React this.setState is not a function
  53. AngularJS- Login and Authentication in each route and controller
  54. Check if a variable is a string in JavaScript
  55. What does !1 and !0 mean in Javascript?
  56. How to wait for a JavaScript Promise to resolve before resuming function?
  57. How to make a simple image upload using Javascript/HTML
  58. Check if object exists in JavaScript
  59. How to simulate a click with JavaScript?
  60. Javascript – ERR_CONTENT_LENGTH_MISMATCH
  61. how to call a onclick function in tag?
  62. Map vs Object in JavaScript
  63. typescript – cloning object
  64. Register and enqueue conditional (browser-specific) javascript files?
  65. Comment Reply javascript
  66. Refresh wp.media after ajax call
  67. Apply jquery script to only woocommerce product pages and categories
  68. Saving Metadata from the Gutenberg Editor Sidebar to the Database
  69. How to block specific keywords from searching on WordPress?
  70. jQuery Hoverintent plugin in TwentyEleven Menu [closed]
  71. Backend option to include a javascript file on specific pages?
  72. White text on white background in TinyMCE when wp_editor is called in WP 3.9
  73. Why is this gutenberg custom format button only available from the toolbar as a dropdown?
  74. Script won’t execute in the media manager
  75. Deregistering a script in WordPress seems impossible
  76. Where to call wp_enqueue_script in a plugin with custom template?
  77. How to select the contents in the text view textrea in wp_editor?
  78. How to load wp_editor via AJAX
  79. wordpress wp_enqueue_script() not working
  80. Redirect to another page using contact form 7? [closed]
  81. How do I add some javascript validation to the admin interface form’s onsubmit?
  82. I have an old version of jQuery showing up. How do I figure out where it is coming from?
  83. Search input area autogrow – how?
  84. How use wp media upload liberary in react components?
  85. Retrieving data about comments and likes
  86. Upload a web module (html and JS) to wordpress
  87. Need help with customalert that it would read on a normal page, but not in WordPress
  88. Linking Javascript in functions.php file
  89. Screen Options JavaScript Code
  90. Linking wp_enqueue can’t find the javascript file (adds “?ver=x.x.x” to the src)
  91. Event listener callback returns undefined element
  92. How to add JS script in specific pages in WordPress?
  93. Javascript working on jsfiddle but not wordpress site?
  94. How to safely pass post_id and user_id via AJAX to the backend (prevent user from changing it via JS)?
  95. How can i iterate through this shortcode array?
  96. jQuery not working for media uploader
  97. Put dynamic Javascript in header after doing operations
  98. Theme customizer live preview JS- Trying to bind to an html image url without luck
  99. wp_deregister_script was called incorrectly
  100. Why is this script not working?

Leave a Comment

tech