Comments (3)
Related uber/h3-js#79
from h3.
There are a couple of levels you could check here, but I don't think you want to fully validate without the library.
- The simplest option is probably
typeof string === 'string' && /^8[0-9a-f]{14}$/.test(string)
- this just validates that the input string is a hexidecimal string of the appropriate length, and checks the first 8 bits for the expected value (which is the same for all cell indexes, but different for edge indexes or vertex indexes). - Beyond that, you'd need to validate that the different components of the index are valid together. This is complex, and probably not something you want to implement yourself unless absolutely necessary:
- Validate the base cell bits to be
0-121
- Determine the resolution of the cell
- Validate that the first
res
index digits (defined by 3-bit sequences) to be0-6
- Validate that the rest of the digits are
7
- Particularly tricky without the library - validate that, IFF any parent cell is a pentagon, we don't have any invalid
6
index digits in a child position. This requires knowing which twelve base cells are pentagons, and looking for the first non-pentagon child digit.
- Validate the base cell bits to be
from h3.
Thank you very much for the explanation.
I think then I'm going to rely on the library to be safe.
Have a great day.
from h3.
Related Issues (20)
- illegal instruction on ppc64 big endian server HOT 2
- h3.exact_edge_length execution error HOT 4
- PloygonAlgos - Throws error when used wrapper library in swift HOT 2
- About RFC: Polyfill modes release plan HOT 1
- replace `sprintf` with `snprintf` HOT 1
- Add additional modes for polygonToCells HOT 12
- Fuzzer timeout on fuzzerIj: gridPathCells
- Broken Link to website docs in contributing.md
- Broken link to website in contributing docs
- Uber CLA Contact HOT 1
- Has cell_to_vertex been implemented? HOT 2
- Replace empty function parameters with `void` HOT 1
- cell_to_child_pos() version 4 of the Python API client HOT 3
- polygonToCells: validity of polygons HOT 3
- Missing library stubs MYPY HOT 2
- polygonToCells not returning all H3Cells for the bounding box containing both USA and Russia HOT 1
- Confirmation of grid algorithm HOT 3
- cellToChildren error HOT 2
- Add function for returning the H3 indices of each endpoint of a directed edge HOT 5
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from h3.