Does parseDouble exist in JavaScript?

It’s not possible to natively deal with a 21-digit precision number in JavaScript.

JavaScript only has one kind of number: “number”, which is a IEEE-754 Double Precision (“double”) value. As such, parseFloat in JavaScript is the equivalent of a “parse double” in other languages.

However, a number/”double” only provides 16 significant digits (decimal) of precision and so reading in a number with 21-digits will lose the 5 least significant digits1.

For more precision (or accuracy) a “big number” library must be used;

1 Information can be lost when encoding as an IEEE “double”, which cannot encode all decimal values exactly, but that’s another question..

Related Posts:

  1. Google reCAPTCHA V3.0 not working. “ERROR for site owner: Invalid key type”
  2. Javascript split regex question
  3. Find object by id in an array of JavaScript objects
  4. Cannot set property InnerHTML of null [duplicate]
  5. How can I submit a form using JavaScript?
  6. How to set NODE_ENV to production/development in OS X
  7. How fix ‘Failed to load resource: the server responded with a status of 403’?
  8. How do I empty an array in JavaScript?
  9. JavaScript TypeError: Cannot read property ‘style’ of null
  10. JavaScript string newline character?
  11. How to create a GUID / UUID
  12. How does “/\s/g” replace spaces with other characters?
  13. Set style using pure JavaScript
  14. Check if element exists in jQuery
  15. Checking a Url in Jquery/Javascript
  16. Usage of the backtick character (`) in JavaScript
  17. Why is using “for…in” for array iteration a bad idea?
  18. Parsing a string to a date in JavaScript
  19. Number converted in 1e+30
  20. Static variables in JavaScript
  21. ReferenceError : window is not defined at object. Node.js
  22. Node.js Port 3000 already in use but it actually isn’t?
  23. Mouseover & Mouseout w/ Javascript
  24. Most efficient way to convert an HTMLCollection to an Array
  25. React Uncaught Error: Target container is not a DOM element [duplicate]
  26. document.getElementByID is not a function
  27. No overload matches this call. Type ‘string’ is not assignable to type ‘Signals’
  28. Moment js date time comparison
  29. What is the difference between node.js and io.js?
  30. module.exports vs exports in Node.js
  31. What does ‘:’ (colon) do in JavaScript?
  32. JavaScript getElementByID() not working
  33. How to send an email from JavaScript
  34. How can I check if an element exists in the visible DOM?
  35. XMLHttpRequest status 0 (responseText is empty)
  36. What is the meaning of || in javascript?
  37. Coin toss with JavaScript and HTML
  38. Does JavaScript support array/list comprehensions like Python?
  39. Play an audio file using jQuery when a button is clicked
  40. How to define Global Arrays?
  41. JavaScript post request like a form submit
  42. Is there a simple way to create a javascript lookup table?
  43. Disable Chrome strict MIME type checking
  44. Why am I getting “ReferenceError: getElementById is not defined”?
  45. Can a for loop increment/decrement by more than one?
  46. Uncaught Invariant Violation: Rendered more hooks than during the previous render
  47. Get cookie by name
  48. jQuery equivalent of querySelector
  49. document.getElementById().value doesn’t set the value
  50. How to remove part of a string?
  51. How to run a function when the page is loaded?
  52. Convert normal date to unix timestamp
  53. jQuery replace one class with another
  54. Clearing my form inputs after submission
  55. Scope Chain in Javascript
  56. Changing the image source using jQuery
  57. Reload an iframe with jQuery
  58. How to convert binary string to decimal?
  59. Set CSS property in JavaScript?
  60. how to write javascript code inside php
  61. javascript convert int to float
  62. Uncaught TypeError: Cannot read property ‘toLowerCase’ of undefined
  63. How do I convert a JavaScript forEach loop/function to CoffeeScript
  64. ZIP Code (US Postal Code) validation
  65. JSLint is suddenly reporting: Use the function form of “use strict”
  66. How do I install Angular 2 using NPM?
  67. Detecting a mobile browser
  68. jQuery .animate() not working
  69. how to add inside a text box?
  70. is it posible to add anime.js in WordPress
  71. Is it possible to enqueue the Youtube API script or does it have to be inline?
  72. What type of template are WP media-modal’s templates?
  73. Correctly handling WordPress core data retrieval in Gutenberg
  74. Javascript not included
  75. Gutenberg RichText
  76. How to use wp.hooks.addAction() in React JS/Gutenberg?
  77. Sending custom data with Media Frame Model
  78. Accessing customizer values in javascript
  79. How do display simple page for printing product info? [closed]
  80. Unwanted line break before
  81. Multiple Conditional Controllers
  82. How to retrieve data from database, then pass it to Javascript?
  83. Weird links found in wordpress footer
  84. Looping over wordpress meta to create “ ‘s?
  85. How to include a JSON file on my page?
  86. Adding inline JavaScript after wp_enqueue_scripts
  87. Install GTM in pure javascript through functions.php
  88. how to let users upload their custom cover image
  89. how to use nimble-API and Display data?
  90. How do you create your own link preview for my website?
  91. Can’t get rid of JQMIGRATE: Migrate is installed, version 3.3.2. Manually updated all the libralies and site. 5.8.2
  92. How to correctly load this jquery script through the file functions.php?
  93. Create new product with woocommerce REST API with javascript (clientside)?
  94. Combining results from WP-API using AngularJS
  95. Javascript file not included only on home page
  96. Get current day using javascript [closed]
  97. dropdown does not work [closed]
  98. Anyway to disable the auto excerpt creation?
  99. Why is this script not working?
  100. Astra Mobile Cart Drawer is blank on home page

Leave a Comment