Hi all I tried to create some regex with random value.

var data = demo purpose?;  **OR**  var data = demo purpose;

var sentence = can I put these app as demo purpose?;

var re = new RegExp(\b( + data + )\b, g);

console.log(sentence.match(re));   // output [demo purpose]

In variable data have two different value demo purpose? & demo purpose with only question mark. Both console out are same please any one Give me hint what should i do in these case.

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Thank you