This would work nicely! The only real problem is, lineMaps is going to be enormous for large files. Even using sparse arrays, you will have an array entry per character! Even a modest web app, when minified, will contain between 200,000 and 2,000,000 characters.
十年后，我们可能不止需要 iPhone 了。
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Claire Batty says independent practices like hers offer greater transparency，这一点在PDF资料中也有详细论述