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const

Last updated on : 2023-03-20

Note:
const shows a browser compatibility score of 97. This is a collective score out of 100 to represent browser support of a web technology. The higher this score is, the greater is the browser compatibility. The browser compatibility score is not a 100% reflection for every browser and the web technology support. However, it does give you an estimate on how much you should rely on a particular web technology in terms of browser compatibility.

Overview

Declares a constant in multiple files without having to specify it repeatedly.

Specifications

ECMAScript Language Specification # sec-let-and-const-declarations

Syntax

const name1 = value1 [, name2 = value2 [, ... [, nameN = valueN]]];

Code snippets

qlist-const-iterator.html

Source:qlist-const-iterator.html Github

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qjsonarray-const-iterator.html

Source:qjsonarray-const-iterator.html Github

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qlist-const-iterator-members.html

Source:qlist-const-iterator-members.html Github

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Browser Compatibility

  • const on IE is fully supported on None of the versions, partially supported on 11-11, and not supported on 5.5-10 IE versions.
  • const on Edge is fully supported on 12-111, partially supported on None of the versions, and not supported on below 12 Edge versions.
  • const on Firefox is fully supported on 36-113, partially supported on 2-35, and not supported on below 2 Firefox versions.
  • const on Chrome is fully supported on 49-114, partially supported on 4-48, and not supported on below 4 Chrome versions.
  • const on Safari is fully supported on 11-16.4, partially supported on 3.2-10.1, and not supported on below 3.2 Safari versions.
  • const on Opera is fully supported on 36-95, partially supported on 10.5-35, and not supported on 9.5-9 Opera versions.
  • const on Safari on iOS is fully supported on 11-16.4, partially supported on 3.2-10.3, and not supported on below 3.2 Safari on iOS versions.
  • const on Android Browser is fully supported on 97-111, partially supported on 2.3-4, and not supported on below 2.3 Android Browser versions.
  • const on Opera Mobile is fully supported on 64-73, partially supported on 10-12, and not supported on below 10 Opera Mobile versions.
  • const on Chrome for Android is fully supported on 97-111, partially supported on None of the versions, and not supported on below 97 Chrome for Android versions.
  • const on Firefox for Android is fully supported on 95-110, partially supported on None of the versions, and not supported on below 95 Firefox for Android versions.
  • const on Samsung Internet is fully supported on 5-20, partially supported on 4-4, and not supported on below 4 Samsung Internet versions.
97
Hightooltip

Browser Compatibility Score

Chrome IE
Medium

Browser Support For IE Versions

-
Fully
11-11
Partially
5.5-10
No Support
Chrome Edge
High

Browser Support For Edge Versions

12-111
Fully
-
Partially
-
No Support
Chrome Firefox
High

Browser Support For Firefox Versions

36-113
Fully
2-35
Partially
-
No Support
Chrome Chrome
High

Browser Support For Chrome Versions

49-114
Fully
4-48
Partially
-
No Support
Chrome Safari
High

Browser Support For Safari Versions

11-16.4
Fully
3.2-10.1
Partially
-
No Support
Chrome Opera
High

Browser Support For Opera Versions

36-95
Fully
10.5-35
Partially
9.5-9
No Support
Chrome Safari on iOS
High

Browser Support For Safari on iOS Versions

11-16.4
Fully
3.2-10.3
Partially
-
No Support
Chrome Android Browser
High

Browser Support For Android Browser Versions

97-111
Fully
2.3-4
Partially
-
No Support
Chrome Opera Mobile
High

Browser Support For Opera Mobile Versions

64-73
Fully
10-12
Partially
-
No Support
Chrome Chrome for Android
High

Browser Support For Chrome for Android Versions

97-111
Fully
-
Partially
-
No Support
Chrome Firefox for Android
High

Browser Support For Firefox for Android Versions

95-110
Fully
-
Partially
-
No Support
Chrome Samsung Internet
High

Browser Support For Samsung Internet Versions

5-20
Fully
4-4
Partially
-
No Support

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Last Modified date

2023-03-20

References


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