expression evaluator in javascript: part 3 (interpreter)

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This is the final part of my weekly series on how to write a math expression evaluator in JavaScript. If you haven’t do so, it is recommended that you read the first part (on lexical analysis) and second part (on parsing and syntax tree) before digesting this blog post. Note: If you want a different… Read more »

hall of api shame: boolean trap

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Update: Read also the approach to detect Boolean traps (in JavaScript apps) using a simple script. The nice thing working for Trolltech was (among others) learning the principles behind the good API. The article Designing Qt-Style C++ API from Matthias 6 years ago is still a good reading till today. The content itself is now… Read more »

math expression evaluator in javascript: part 2 (parser)

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This is the second part of my weekly series on how to write a math expression evaluator in JavaScript. If you miss the first part, which was about lexical analysis, go and read it first and come back later. In this installment, we will see the actual parsing process. Based on a sequence of tokens… Read more »

math evaluator in javascript: part 1 (the tokenizer)

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This will be the first part of a series of weekly blog posts where I outline the steps necessary to create a math expression evaluator using ECMAScript. By the end of the series, you expect to know the magical machinery which can understand and compute the result of the following expression: sin(pi/4) * sqrt(2) +… Read more »

dirgahayu

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66 years have passed since the Proclamation of Indonesian Independence.