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Strange behavior with `fs.watch` on file with JSON stringified -> first update isn't emitted if too fast after `fs.watch`

nodejs/node#53111·122028·JavaScript·178 天未动·14 条评论·上游最近活跃 ·池内状态:可认领
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上游 issue 正文

### Node.js Version v18.17.1 ### NPM Version 9.6.7 ### Operating System 23.2.0 Darwin ### Subsystem fs ### Description I would like to watch changes on a file storing JSON stringified data but the watcher created with `fs.watch` is not emitted if the change happen to quickly after the call of `fs.watch`. The strange thing is that if the content is only a text (without JSON format) the watcher emit the event correctly... ### Minimal Reproduction ```Javascript const fs = require('fs'); const path = require('path'); const filePath = path.join(__dirname, 'test.json'); // Create the file if it doesn't exist if (!fs.existsSync(filePath)) { fs.writeFileSync(filePath, "{ }"); } fs.watch(filePath, (eventType, filename) => { console.log(`Event type is: ${eventType}`); if (filename) { console.log(`Filename provided: ${filename}`); } else { console.log('Filename not provided'); } }); fs.writeFileSync(filePath, "{ \"test\": \"test\", \"test2\": \"test2\" }"); // same with JSON.stringify(...) // Listener above is called if we replace line above with: // fs.writeFileSync(filePath, "very ok or not but I need a longer text to test something..."); ``` ### Output ### Expected ``` Event type is: change Filename provided: test.json ``` ### Received *Nothing* ### Before You Submit - [X] I have looked for issues that already exist before submitting this - [X] My issue follows the guidelines in the README file, and follows the 'How to ask a good question' guide at https://stackoverflow.com/help/how-to-ask
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