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Message
RangeError: repeat count must be non-negative (Firefox) RangeError: Invalid count value (Chrome)
Error type
What went wrong?
The String.prototype.repeat() method has been used. It has a count parameter indicating the number of times to repeat the string. It must be between 0 and less than positive Infinity and cannot be a negative number. The range of allowed values can be described like this: [0, +∞).
Examples
Invalid cases
'abc'.repeat(-1); // RangeError
Valid cases
'abc'.repeat(0); // '' 'abc'.repeat(1); // 'abc' 'abc'.repeat(2); // 'abcabc' 'abc'.repeat(3.5); // 'abcabcabc' (count will be converted to integer)