Gathering detailed insights and metrics for babel-plugin-transform-replace-expressions
Gathering detailed insights and metrics for babel-plugin-transform-replace-expressions
A Babel plugin for replacing expressions with other expressions
Installations
npm install babel-plugin-transform-replace-expressionsDeveloper Guide
BETA
Typescript
No
Module System
CommonJS
Releases
Unable to fetch releases
Languages
1
JavaScript
JavaScript (100%)
Developer
jviide
Download Statistics
Total Downloads
0
Last Day
0
Last Week
0
Last Month
0
Last Year
0
GitHub Statistics
MIT License
24 Stars
35 Commits
1 Watchers
2 Branches
17 Contributors
Updated on Dec 09, 2023
Maintainers
1
Package Meta Information
Latest Version
0.2.0
Package Id
babel-plugin-transform-replace-expressions@0.2.0
Size
2.78 kB
Published on
Mar 11, 2019
Total Downloads
Cumulative downloads
Total Downloads
NaN
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
Weekly Downloads
Monthly Downloads
Yearly Downloads
Dependencies
1
Peer Dependencies
1
babel-plugin-transform-replace-expressions 
Replace JavaScript expressions with other expressions.
Installation
$ yarn add --dev babel-plugin-transform-replace-expressions
Example
Input file:
1const env = process.env.NODE_ENV; 2 3typeof Hello === "number";
.babelrc:
1{ 2 "plugins": [ 3 [ 4 "babel-plugin-transform-replace-expressions", 5 { 6 "replace": { 7 "process.env.NODE_ENV": "\"production\"", 8 "typeof Hello": "42" 9 } 10 } 11 ] 12 ] 13}
Output:
1const env = "production"; 2 342 === "number";
Conflict resolution
A conflict happens when two replacements have the same Babel abstract syntax tree representation. For example expressions typeof A and typeof (A) are formatted differently but have the same AST representation as far as the plugin is concerned. In those situations the default is to raise an error, and can be overwritten by setting the option allowConflictingReplacements to true.
You can also always give the replacements as an array of key-value pairs. When allowConflictingReplacements is set to true the last conflicting replacement gets selected.
1{ 2 "plugins": [ 3 [ 4 "babel-plugin-transform-replace-expressions", 5 { 6 "replace": [ 7 ["typeof A", "B"], 8 ["typeof (A)", "C"] 9 ], 10 "allowConflictingReplacements": true 11 } 12 ] 13 ] 14}
Notes
-
Replacements are only applied to expressions. Therefore replacing
DEBUGwithfalseinconst DEBUG = truedoes nothing, but forif (DEBUG) {}the result isif (false) {}. -
Only full expressions count. You can't replace
envinprocess.env.NODE_ENV, you have to replaceprocess.env, which is a proper expression in Babel AST. -
A replacement is only applied when the result is valid JavaScript. For example replacing
awith2in the following code:1a = 1; 2b = a;yields
1a = 1; 2b = 2;
License
This plugin is licensed under the MIT license. See LICENSE.
No vulnerabilities found.
Reason
no binaries found in the repo
Reason
no dangerous workflow patterns detected
Reason
license file detected
Details
- Info: project has a license file: LICENSE:0
- Info: FSF or OSI recognized license: MIT License: LICENSE:0
Reason
0 commit(s) and 0 issue activity found in the last 90 days -- score normalized to 0
Reason
Found 0/30 approved changesets -- score normalized to 0
Reason
dependency not pinned by hash detected -- score normalized to 0
Details
- Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/tests.yml:13: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/babel-plugin-transform-replace-expressions/tests.yml/master?enable=pin
- Warn: GitHub-owned GitHubAction not pinned by hash: .github/workflows/tests.yml:14: update your workflow using https://app.stepsecurity.io/secureworkflow/preactjs/babel-plugin-transform-replace-expressions/tests.yml/master?enable=pin
- Info: 0 out of 2 GitHub-owned GitHubAction dependencies pinned
Reason
no SAST tool detected
Details
- Warn: no pull requests merged into dev branch
Reason
detected GitHub workflow tokens with excessive permissions
Details
- Warn: no topLevel permission defined: .github/workflows/tests.yml:1
- Info: no jobLevel write permissions found
Reason
no effort to earn an OpenSSF best practices badge detected
Reason
project is not fuzzed
Details
- Warn: no fuzzer integrations found
Reason
branch protection not enabled on development/release branches
Details
- Warn: branch protection not enabled for branch 'master'
Reason
security policy file not detected
Details
- Warn: no security policy file detected
- Warn: no security file to analyze
- Warn: no security file to analyze
- Warn: no security file to analyze
Reason
25 existing vulnerabilities detected
Details
- Warn: Project is vulnerable to: GHSA-968p-4wvh-cqc8
- Warn: Project is vulnerable to: GHSA-67hx-6x53-jw92
- Warn: Project is vulnerable to: GHSA-v6h2-p8h4-qcjw
- Warn: Project is vulnerable to: GHSA-grv7-fg5c-xmjg
- Warn: Project is vulnerable to: GHSA-3xgq-45jj-v275
- Warn: Project is vulnerable to: GHSA-67mh-4wv8-2f99
- Warn: Project is vulnerable to: GHSA-4q6p-r6v2-jvc5
- Warn: Project is vulnerable to: GHSA-9c47-m6qq-7p4h
- Warn: Project is vulnerable to: GHSA-952p-6rrq-rcjv
- Warn: Project is vulnerable to: GHSA-mwcw-c2x4-8c55
- Warn: Project is vulnerable to: GHSA-7fh5-64p2-3v2j
- Warn: Project is vulnerable to: GHSA-gcx4-mw62-g8wm
- Warn: Project is vulnerable to: GHSA-c2qf-rxjj-qqgw
- Warn: Project is vulnerable to: GHSA-353f-5xf4-qw67
- Warn: Project is vulnerable to: GHSA-c24v-8rfc-w8vw
- Warn: Project is vulnerable to: GHSA-8jhw-289h-jh2g
- Warn: Project is vulnerable to: GHSA-64vr-g452-qvp3
- Warn: Project is vulnerable to: GHSA-9cwx-2883-4wfx
- Warn: Project is vulnerable to: GHSA-vg6x-rcgg-rjx6
- Warn: Project is vulnerable to: GHSA-x574-m823-4x7w
- Warn: Project is vulnerable to: GHSA-4r4m-qw57-chr8
- Warn: Project is vulnerable to: GHSA-xcj6-pq6g-qj4x
- Warn: Project is vulnerable to: GHSA-356w-63v5-8wf4
- Warn: Project is vulnerable to: GHSA-859w-5945-r5v3
- Warn: Project is vulnerable to: GHSA-j8xg-fqg3-53r7
Score
2.5
/10
Last Scanned on 2025-07-07
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