How do you create self string using special characters
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The self string can be formed with the combination of []()!+ characters. You need to remember the below conventions to achieve this pattern.
Since Arrays are truthful values, negating the arrays will produce false: ![] === false
As per JavaScript coercion rules, the addition of arrays together will toString them: [] + [] === “”
Prepend an array with + operator will convert an array to false, the negation will make it true and finally converting the result will produce value ‘1’: +(!(+[])) === 1