elk | A low footprint JavaScript engine for embedded systems

 by   cesanta C Version: 2.2.0 License: Non-SPDX

kandi X-RAY | elk Summary

kandi X-RAY | elk Summary

elk is a C library typically used in Embedded System, Arduino applications. elk has no bugs, it has no vulnerabilities and it has medium support. However elk has a Non-SPDX License. You can download it from GitHub.

Elk is a tiny embeddable JavaScript engine that implements a small but usable subset of ES6. It is designed for microcontroller development. Instead of writing firmware code in C/C++, Elk allows to develop in JavaScript. Another use case is providing customers with a secure, protected scripting environment for product customisation.
Support
    Quality
      Security
        License
          Reuse

            kandi-support Support

              elk has a medium active ecosystem.
              It has 1480 star(s) with 68 fork(s). There are 24 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 1 open issues and 46 have been closed. On average issues are closed in 88 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of elk is 2.2.0

            kandi-Quality Quality

              elk has 0 bugs and 0 code smells.

            kandi-Security Security

              elk has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              elk code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              elk has a Non-SPDX License.
              Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

            kandi-Reuse Reuse

              elk releases are available to install and integrate.
              Installation instructions, examples and code snippets are available.
              It has 63 lines of code, 0 functions and 3 files.
              It has low code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi's functional review helps you automatically verify the functionalities of the libraries and avoid rework.
            Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of elk
            Get all kandi verified functions for this library.

            elk Key Features

            No Key Features are available at this moment for elk.

            elk Examples and Code Snippets

            No Code Snippets are available at this moment for elk.

            Community Discussions

            QUESTION

            How to apply styles from a JSON file using for loop?
            Asked 2022-Mar-28 at 09:28

            I'll cut to the chase, I'm still a beginner with javascript and I'm having trouble correlating some data from a JSON file to specific HTML elements using a "for loop", so I can apply styles to them.

            Here is my HTML:

            ...

            ANSWER

            Answered 2022-Mar-28 at 05:27

            I think for your case, the best approach is to create new

          • elements in the for-loop and append them to the correct position, instead of having a fixed number of
          • elements and changing their properties.

            You might want to look at createElement and appendChild.

          • Source https://stackoverflow.com/questions/71642729

            QUESTION

            how to split a list of strings with ref of other strings
            Asked 2022-Feb-25 at 05:08

            I need to remediate from a little error (60k+ over a full set of 2M items) when stack the dataset in a quite big file: somehow 2 consecutive records were merged together. I show you just few examples:

            ...

            ANSWER

            Answered 2022-Feb-25 at 05:08

            The following re.findall approach seems to be working here:

            Source https://stackoverflow.com/questions/71261009

            QUESTION

            Split log message on space for grok pattern
            Asked 2022-Feb-11 at 08:15

            I am two days new to grok and ELK. I am struggling with breaking up the log messages based on space and make them appear as different fields in the logstash.

            My input pattern is: 2022-02-11 11:57:49 - app - INFO - function_name=add elapsed_time=0.0296 input_params=6_3

            I would like to see different fields in the logstash/kibana for function_name, elapsed_time and input_params.

            At the moment, I have a following .conf

            ...

            ANSWER

            Answered 2022-Feb-11 at 08:15

            You can use the following pattern:

            Source https://stackoverflow.com/questions/71076037

            QUESTION

            If then else not working in FileBeat processor
            Asked 2022-Jan-27 at 12:08

            I'm trying to setup some processors in a filebeat.yml to process some logs before sending to ELK.

            An important part of the processing is determining the "level" of the event, which is not always included in the line in the log file.

            This is the idea I have for it right now:

            ...

            ANSWER

            Answered 2022-Jan-27 at 12:08

            The if part of the if-then-else processor doesn't use the when label to introduce the condition. The correct usage is:

            Source https://stackoverflow.com/questions/70867316

            QUESTION

            Log to ELK from Nomad without using container technology
            Asked 2021-Dec-21 at 17:35

            We are using Hashicorp Nomad to run microservices on Windows. We experienced that allocations come and go, but we would like to have centralized logging solution (ideally ELK) for all logs from all jobs and tasks from multiple environments. It is quite simple to do it with dockerized environments, but how can I do it if I run raw_exec tasks?

            ...

            ANSWER

            Answered 2021-Dec-21 at 17:35

            There's nothing specific to containers for log shipping other than the output driver. If containers write their logs to volumes, which Nomad can be configured to do, then the answer is the same.

            Assuming your raw_exec jobs write logs into the local filesystem, then you need a log shipper product such as Filebeat or Fluentd to watch those paths, then push that data to Elastic / Logstash.

            Source https://stackoverflow.com/questions/68743451

            QUESTION

            is it possible to split a nested json field value in json log into further sub fields in logstash filtering using mutate?
            Asked 2021-Dec-21 at 14:26

            I have a json log like this being streamed into ELK

            ...

            ANSWER

            Answered 2021-Dec-21 at 14:26

            I think I have config that fits what you want:

            Source https://stackoverflow.com/questions/70334976

            QUESTION

            Loki display log message and extra fields separately
            Asked 2021-Nov-17 at 08:23

            In https://github.com/grafana/loki/issues/4249 I found interesting screenshot.

            On this screenshot I see that log level and message are displayed bold with white text and other metadata (collected from log message) displayed on separate line with grey color.

            I have searched docs and haven't found how it's possible to achieve that. To be honest I'm searching for something like "short message" in ELK to make developers see metadata only when they are actually needs it. Could you please point me to the doc how to achieve that please?

            ...

            ANSWER

            Answered 2021-Nov-17 at 08:23

            Short answer: I found that there isn't such UI function in Grafana UI. But there's two features that can help you achieve such result:

            1. Line formating - allows you to show only selected parts of message
            2. ANSI escape sequence rendering - that allows you to change font settings (bold/italic/color)

            Long answer:

            • Here's my initial test query (that shows only messages that have "HornetQ") {appname=~".+"} |= "HornetQ" it produces following output.
            • I have added line formatting to the query to show only message field by default

            Source https://stackoverflow.com/questions/69761162

            QUESTION

            Why doesn't the WHERE work in this sql query
            Asked 2021-Nov-06 at 12:00

            I'm writing a SQL query that needs to only show the results where the 'titel' is the same as 'Baklava', but it doesn't return any rows. When I try to use the query without the WHERE, is shows all the results, but I need the WHERE clause to work.

            Here is the query I'm trying to use:

            ...

            ANSWER

            Answered 2021-Nov-05 at 13:26

            You have not inserted any rows in to the posts_tags table, so there's no link between the posts and the tags.

            Try:

            Source https://stackoverflow.com/questions/69853799

            QUESTION

            Write a inner join query for three tables in sql
            Asked 2021-Nov-05 at 11:18

            Which query can I use that uses INNER JOIN that gets the output of:

            post_id, tag_id from table posts_tags

            titel from table tags

            titel from table posts

            post_id from table posts_tags has a foreign key to id in posts table, and tag_id from table posts_tags has a foreign key to id in the tags table

            import.sql:

            ...

            ANSWER

            Answered 2021-Nov-05 at 11:18

            The right and working query is: SELECT *, tags.titel AS tags FROM posts_tags INNER JOIN tags ON posts_tags.post_id = tags.id INNER JOIN posts ON posts.id = tags.id GROUP BY posts.id;

            Source https://stackoverflow.com/questions/69851618

            QUESTION

            elasticsearch user for monitoring (which role to apply?)
            Asked 2021-Oct-22 at 08:58

            Elasticsearch 7.15 with xpack auth enabled (if matters, only elasticsearch, no kibana or other elk applications installed)

            I'm trying to add a user for monitoring purposes (retrieve information from elasticsearch i.e. cluster status, cluster health, indices health, size, docs count, other read only parameters about elasticsearch performance). I was looking into elasticsearch builtin roles and add role of "monitoring_user", but I can only get the "about page" (aka /), no _cluster/health, no _cat/indices or other links.

            So what is the minimum least privileges role to be applied to the monitoring user in order to obtain status data from elasticsearch ?

            Thank you!

            ...

            ANSWER

            Answered 2021-Oct-22 at 08:58

            After digging through builtin users/roles, I created a new role for monitoring and assign an user to that role. So far, so good, not sure that I have access to all the information I will need in the future, but it's a start.

            This is a sample of ansible variables (official elasticsearch ansible role was used), but I think it's very readable (creating a new role with cluster & indices monitor capability and creating a user with that role assigned).

            Source https://stackoverflow.com/questions/69660711

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install elk

            Note: on ESP32 or ESP8266, compiled functions go into the .text ELF section and subsequently into the IRAM MCU memory. It is possible to save IRAM space by copying Elk code into the irom section before linking. First, compile the object file, then rename .text section, e.g. for ESP32:.

            Support

            Operations: all standard JS operations except: !=, ==. Use strict comparison !==, === No computed member access a[b]Typeof: typeof('a') === 'string'While: while (...) { ... }Conditional: if (...) ... else ...Ternary operator a ? b : cSimple types: let a, b, c = 12.3, d = 'a', e = null, f = true, g = false;Functions: let f = function(x, y) { return x + y; };Objects: let obj = {f: function(x) { return x * 2}}; obj.f(3);Every statement must end with a semicolon ;Strings are binary data chunks, not Unicode strings: 'Київ'.length === 8
            Find more information at:

            Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items

            Find more libraries
            CLONE
          • HTTPS

            https://github.com/cesanta/elk.git

          • CLI

            gh repo clone cesanta/elk

          • sshUrl

            git@github.com:cesanta/elk.git

          • Stay Updated

            Subscribe to our newsletter for trending solutions and developer bootcamps

            Agree to Sign up and Terms & Conditions

            Share this Page

            share link