Gathering detailed insights and metrics for @stdlib/assert-is-json
Gathering detailed insights and metrics for @stdlib/assert-is-json
Gathering detailed insights and metrics for @stdlib/assert-is-json
Gathering detailed insights and metrics for @stdlib/assert-is-json
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Test if a value is a parseable JSON string.
npm install @stdlib/assert-is-json
Typescript
Module System
Min. Node Version
Node Version
NPM Version
JavaScript (100%)
Total Downloads
0
Last Day
0
Last Week
0
Last Month
0
Last Year
0
Apache-2.0 License
2 Stars
67 Commits
3 Watchers
5 Branches
14 Contributors
Updated on Dec 01, 2024
Latest Version
0.2.2
Package Id
@stdlib/assert-is-json@0.2.2
Unpacked Size
25.90 kB
Size
7.98 kB
File Count
11
NPM Version
8.19.4
Node Version
16.20.2
Published on
Jul 27, 2024
Cumulative downloads
Total Downloads
Last Day
0%
NaN
Compared to previous day
Last Week
0%
NaN
Compared to previous week
Last Month
0%
NaN
Compared to previous month
Last Year
0%
NaN
Compared to previous year
We believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js.
The library is fully decomposable, being architected in such a way that you can swap out and mix and match APIs and functionality to cater to your exact preferences and use cases.
When you use stdlib, you can be absolutely certain that you are using the most thorough, rigorous, well-written, studied, documented, tested, measured, and high-quality code out there.
To join us in bringing numerical computing to the web, get started by checking us out on GitHub, and please consider financially supporting stdlib. We greatly appreciate your continued support!
Test if a value is a parseable JSON string.
1npm install @stdlib/assert-is-json
1var isJSON = require( '@stdlib/assert-is-json' );
Tests if a value
is a parseable JSON string
.
1var value = '{"a":5}'; 2 3var bool = isJSON( value ); 4// returns true
The implementation validates that the input value
is a string
literal. For all other inputs, the method returns false
.
The implementation validates that a string
begins with either [
or {
and ends with a corresponding ]
or }
, respectively. Hence, the method will return false
for the following strings
, despite JSON.parse
accepting their input:
'<number>'
(e.g., '5'
)'<boolean>'
(e.g., 'true'
)'null'
The implementation wraps JSON.parse
inside a try/catch
. Hence, this function cannot be optimized by the compiler during runtime. Nevertheless, using this function is better than embedding a try/catch
within a larger function
which could be optimized in the absence of a try/catch
.
1var isJSON = require( '@stdlib/assert-is-json' ); 2 3var bool = isJSON( '{"a":5}' ); 4// returns true 5 6bool = isJSON( '{a":5}' ); 7// returns false
This package is part of stdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.
For more information on the project, filing bug reports and feature requests, and guidance on how to develop stdlib, see the main project repository.
See LICENSE.
Copyright © 2016-2024. The Stdlib Authors.
No vulnerabilities found.
Reason
no binaries found in the repo
Reason
no dangerous workflow patterns detected
Reason
0 existing vulnerabilities detected
Reason
license file detected
Details
Reason
security policy file detected
Details
Reason
dependency not pinned by hash detected -- score normalized to 3
Details
Reason
Found 0/30 approved changesets -- score normalized to 0
Reason
0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
Reason
no effort to earn an OpenSSF best practices badge detected
Reason
project is not fuzzed
Details
Reason
detected GitHub workflow tokens with excessive permissions
Details
Reason
no SAST tool detected
Details
Reason
branch protection not enabled on development/release branches
Details
Score
Last Scanned on 2025-07-07
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