Ondrej Kelle Profile

Ondrej Kelle

Ondrej Kelle

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Variant support in chakracore-delphi

Ondrej Kelle Ondrej Kelle The new experimental/variants branch of chakracore-delphi introduces some experimental support for Variants. It’s now possible to write code similar to the following: The example above is using Javascript built-in JSON object and its methods: parse… … Read more 4 years ago in Automation, chakracore, cross-platform, Delphi, fpc, Variants 0

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FastMM5 released

Ondrej Kelle Ondrej Kelle Check it out: First non-beta release of FastMM version 5 (a complete rewrite) has just been made public on GitHub. … Read more 5 years ago in Delphi 0

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Node modules with Delphi and Free Pascal

Ondrej Kelle Ondrej Kelle chakracore-delphi now comes with NodeSample, a new sample console application showing (as of now very limited) support for Node modules. Included are: commonmark graphql json-query lodash moment The sample only shows how Node modules can… … Read more 6 years ago in chakracore, Delphi, Free Pascal, javascript, nodejs 0

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WebAssembly with Delphi and ChakraCore

Ondrej Kelle Ondrej Kelle chakracore-delphi now contains WasmSample, a new sample project using ChakraCore to load and run a WebAssembly module (in this case, an implementation of Conway’s Game of Life). It’s based on Colin Eberhardt’s blog post Writing… … Read more 6 years ago in chakracore, Delphi, fpc, Lazarus, wasm 0

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Inheritance with chakracore-delphi

Ondrej Kelle Ondrej Kelle I’ve just pushed some updates to chakracore-delphi. A new feature worth mentioning is support for inheritance (I mean Javascript-style, “prototypical inheritance”) in both directions. Suppose the following hierarchy: First, here is Shape the “supercl… … Read more 6 years ago in chakracore, Delphi, fpc 0

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My Lazarus External Tools

Ondrej Kelle Ondrej Kelle Similar to My Delphi Tools blog post (wow, many years ago), here’s my Lazarus External Tools configuration. Linux (Mint) Title: Explore to Source Directory Program Filename: caja Parameters: $Path($EdFile()) Working Directory: Title: Explore to Targ… … Read more 6 years ago in Lazarus 0

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FastText follow-up

Ondrej Kelle Ondrej Kelle Just a quick follow-up for those of you who showed interest. My proof-of-concept with FastText has been a success. The C# class library has been integrated with a product and staged for a future release…. … Read more 6 years ago in .NET, fasttext, nlp 0

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Another Bug

Ondrej Kelle Ondrej Kelle So you’ve put in the time and effort to refactor your code and data for parallel execution and are eager to see some parallel action. Unfortunately, you might be disappointed; in some cases your tasks… … Read more 7 years ago in Bug, Delphi, multithreading 0

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Don’t lose time with a known Delphi bug affecting TParallel.Join

Ondrej Kelle Ondrej Kelle Writing multi-threaded code is hard and takes a lot of time. That’s why it’s especially annoying to waste time with bugs like this. Reading (and enjoying) PrimoĹľ GabrijelÄŤiÄŤ’s book Delphi High Performance, I’ve come across… … Read more 7 years ago in Bug, Delphi, multithreading 0