[Solved] Strip everything after the last sentence [closed]

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You could try a regex replacement:

var text="Hello. World... Lorem? Ipsum 123";
var output = text.replace(/([.?!])(?!.*[.?!]).*$/, "$1");
console.log(output);

The replacement logic here says to:

([.?!])      match and capture a closing punctuation
(?!.*[.?!])  then assert that this punctuation in fact
             be the final one
.*           match and consume all remaining text
$            until the end of the input

Then we replace that final punctuation mark. We could, in theory, have used a lookbehind, but this isn’t supported on all versions of JavaScript (not at least on SO’s demo tool).

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solved Strip everything after the last sentence [closed]