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 need to validate password with these requirements:-

At least 1 Uppercase
At least 1 Lowercase
At least 1 Number
At least 1 Symbol, symbol allowed --> !@#$%^&*_=+-
Min 8 chars and Max 12 chars
And got stucked a bit, here's what I have so far.

<form>
Password <input type="text" pattern="/^[a-zA-Z0-9!@#\$%\^\&*_=+-]{8,12}$/g" />
<input type="submit" value="Submit" />
</form>