Remove quotes around addition operator
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@ -34,7 +34,7 @@ Before we move on, let's grasp the common terminology.
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Now let's see special features of JavaScript operators that are beyond school arithmetics.
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Usually the plus operator `'+'` sums numbers.
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Usually the plus operator `+` sums numbers.
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But if the binary `+` is applied to strings, it merges (concatenates) them:
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