👩💻👨💻 Awesome cheatsheets for popular programming languages, frameworks and development tools. They include everything you should know in one single file.
This report summarizes scanner evidence for LeCoupa/awesome-cheatsheets, a JavaScript project with 46,601 GitHub stars. SynthScan examined 20,052 lines of code across 57 source files, recording 58 pattern matches distributed across 7 syntactic categories. The legacy adjusted pattern signal is 3.8 (Low pattern signal); it is not an authorship estimate.
Use the findings to ask whether maintainers can explain intent, verify dependencies, simplify unnecessary scaffolding, and focus review effort. Risk Payload v1 adds ownership, supply-chain, over-engineering, and review-effort vectors when available. These are prompts for human verification, not probabilities, security findings, or measured maintenance costs.
Use each vector to guide manual verification of the underlying findings.
Payload schema: 1.0.0 · Engine: 2.0.0 · Scoring: heuristic-density-v1 · Scan date: 2026-10-31.
Can maintainers explain intent, assumptions, and trade-offs? 55 finding(s).
Are imports declared and package/API names verified? 3 finding(s).
Are wrappers, guards, and repeated structures necessary? 0 finding(s).
Which changes need focused human review? 58 finding(s).
This chart tracks the legacy adjusted pattern score across scan runs. Changes can reflect source changes, scan coverage, or detector/scoring versions; they do not measure AI adoption or prove that a team refactored code. Compare runs only when their scoring versions are compatible. The dashed line tracks the raw pattern-hit count.
Groups findings by configured severity weight. Severity is not a confidence estimate, security rating, or proof that a package is missing. Verify imports against the project's manifests and inspect each finding in its local design context.
This horizontal bar chart shows where configured pattern scores accumulate across directories. Treat the bars as locations to inspect, not as evidence of authorship or code quality. Use the file-level findings to decide whether a directory needs a focused ownership, dependency, complexity, or review check.
The scanner identified 58 distinct pattern matches across 7 syntactic categories. Each entry below represents a discrete location in the source code where the engine recorded a detector match to inspect in context. Expand any category row to inspect the individual file paths, line numbers, code snippets, and the lexical context (CODE, COMMENT, or STRING) in which each match was detected.
Reading the findings table: The Severity column indicates the configured finding weight (CRITICAL / HIGH / MEDIUM / LOW). The Context column identifies whether the match occurred inside executable code, an inline comment, or a string literal — legacy comment-context matches receive a ×1.5 score weight. The ⚡ bolt icon marks clustered matches: three or more patterns within a 10-line window, each receiving an additional ×1.5 density multiplier under the legacy scoring model.
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | tools/nanobox_boxfile.yml | 1 | # ***************************************************************************** | COMMENT |
| LOW | tools/git.sh | 141 | # Key to Effective Debugging | COMMENT |
| LOW | tools/git.sh | 161 | COMMENT | |
| LOW | tools/puppeteer.js | 221 | // The events workercreated and workerdestroyed are emitted on the page object to signal the worker lifecycle. | COMMENT |
| LOW | tools/curl.sh | 61 | # WRITE OUT PARAMETERS | COMMENT |
| LOW | tools/curl.sh | 81 | # %{num_connects} # shows the number of new connects made in the recent transfer. | COMMENT |
| LOW | tools/curl.sh | 101 | # host (or proxy) was completed. | COMMENT |
| LOW | frontend/ember.js | 701 | * | COMMENT |
| LOW | frontend/ember.js | 721 | // | COMMENT |
| LOW | frontend/ember.js | 741 | // Ember Meetups | COMMENT |
| LOW | frontend/react.js | 101 | // tells React that this component and its children need to be re-rendered with the updated state. | COMMENT |
| LOW | frontend/react.js | 121 | componentWillReceiveProps(nextProps) { } | COMMENT |
| LOW | frontend/react.js | 141 | COMMENT | |
| LOW | frontend/react.js | 201 | // Render a React element into the DOM in the supplied container and return a reference | COMMENT |
| LOW | frontend/angular.js | 81 | // Binds style property width to the result of expression mySize in pixels. Units are optional. | COMMENT |
| LOW | frontend/angular.js | 101 | // <button (click)="movieplayer.play()"> | COMMENT |
| LOW | frontend/angular.js | 141 | // the current value of conditionExpression. | COMMENT |
| LOW | frontend/angular.js | 341 | { path: '**', component: ... }, | COMMENT |
| LOW | frontend/vue.js | 421 | * https://vuejs.org/v2/api/#Options-Composition | COMMENT |
| LOW | frontend/vue.js | 461 | COMMENT | |
| LOW | frontend/vue.js | 501 | // The instantiation options used for the current Vue instance. | COMMENT |
| LOW | frontend/vue.js | 521 | // be found at vm.$slots.foo). The default property contains any nodes not included in a named slot. | COMMENT |
| LOW | frontend/vue.js | 641 | // <span v-text="msg"></span> | COMMENT |
| LOW | frontend/vue.js | 661 | COMMENT | |
| LOW | frontend/vue.js | 681 | // <!-- Attaches an event listener to the element. The event type is denoted by the argument. --> | COMMENT |
| LOW | frontend/vue.js | 701 | // Prevent default: <button @click.prevent="doThis"></button> | COMMENT |
| LOW | frontend/vue.js | 721 | // Style binding: <div :style="{ fontSize: size + 'px' }"></div> | COMMENT |
| LOW | frontend/vue.js | 741 | // <!-- Skip compilation for this element and all its children. --> | COMMENT |
| LOW | frontend/vue.js | 781 | // <!-- registered under the parent component’s $refs object. If used on a plain DOM element, the --> | COMMENT |
| LOW | backend/django.py | 1 | # ***************************************************************************** | COMMENT |
| LOW | backend/django.py | 21 | COMMENT | |
| LOW | backend/django.py | 41 | # CODING STYLE > DATABASE | COMMENT |
| LOW | backend/django.py | 101 | django-admin startproject <ProjectName> # create a new project directory structure | COMMENT |
| LOW | backend/sails.js | 561 | // Specify a where clause for filtering a query. | COMMENT |
| LOW | backend/sails.js | 621 | // Retrieve the name of the PubSub “room” for a given record. | COMMENT |
| LOW | backend/feathers.js | 61 | // Retrieves a single resource with the given id from the service. | COMMENT |
| LOW | backend/feathers.js | 541 | // This will only run a (fast) counting query against the database and return a page object with | COMMENT |
| LOW | backend/feathers.js | 561 | // │ | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | databases/mysql.sh | 24 | CREATE DATABASE database_name; # Create a new database | CODE |
| MEDIUM | databases/mysql.sh | 26 | CREATE TABLE table_name (column1 datatype, column2 datatype, ...); # Create a new table | CODE |
| MEDIUM | databases/mysql.sh | 100 | CREATE INDEX idx_name ON table_name (column_name); # Create a standard index to speed up queries | CODE |
| MEDIUM | databases/mysql.sh | 101 | CREATE UNIQUE INDEX idx_name ON table_name (column_name); # Create a unique index (no duplicate values) | CODE |
| MEDIUM | tools/heroku.sh | 84 | heroku create appname # Creating a new application on Heroku here ( appname ) represent the name u give to | CODE |
| MEDIUM | tools/heroku.sh | 110 | heroku create appname # Creating a heroku application here ( appname ) represent the name u give to yo | CODE |
| MEDIUM | tools/docker.sh | 78 | docker-machine create --driver virtualbox myvm1 # Create a VM (Mac, Win7, Linux) | CODE |
| MEDIUM | tools/aws.sh | 29 | aws s3 mb s3://<bucket_name> # Create a specific S3 bucket | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | tools/heroku.sh | 57 | # or you can try the below command also on macOS | COMMENT |
| MEDIUM | tools/heroku.sh | 87 | heroku git:remote -a thawing-inlet-61413 # For an existing heroku app, you can add remote to the application | CODE |
| MEDIUM | tools/git.sh | 52 | # git log by default uses less command so you can use these: f=next page, b=prev page, search=/<query>, n=next match, p= | COMMENT |
| MEDIUM | languages/bash.sh | 374 | # There are three built-ins that you can use to override this order: `command`, `builtin` and `enable`. | COMMENT |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW | databases/mongodb.sh | 44 | name: 'John Doe', | CODE |
| LOW | languages/typescript.md | 577 | name: "John Doe", | CODE |
| LOW | languages/typescript.md | 657 | name: "John Doe", | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW⚡ | tools/ffmpeg.sh | 34 | ffmpeg -i input.mp4 -vf "fps=10,scale=480:-1:flags=lanczos,palettegen" palette.png # Step 1: generate an optimized colo | CODE |
| LOW⚡ | tools/ffmpeg.sh | 35 | ffmpeg -i input.mp4 -i palette.png -filter_complex "fps=10,scale=480:-1:flags=lanczos[x];[x][1:v]paletteuse" output.gif | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| LOW⚡ | tools/ffmpeg.sh | 34 | ffmpeg -i input.mp4 -vf "fps=10,scale=480:-1:flags=lanczos,palettegen" palette.png # Step 1: generate an optimized colo | CODE |
| LOW⚡ | tools/ffmpeg.sh | 35 | ffmpeg -i input.mp4 -i palette.png -filter_complex "fps=10,scale=480:-1:flags=lanczos[x];[x][1:v]paletteuse" output.gif | CODE |
| Severity | File | Line | Snippet | Context |
|---|---|---|---|---|
| MEDIUM | frontend/vue.js | 226 | // An alternative to string templates allowing you to leverage the full programmatic power of JavaScript. | COMMENT |