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lengthproperty. This property represents the number of characters in a string. To do this, you must append
.lengthto the string or to the variable that contains the string:
let charNumber = 'Ai'.length;
'Ai'has 2 characters. So
charNumberhas the value
let name = 'Weiwei'; charNumber = name.length;
'Weiwei'has 6 characters.
charNumbernow has the value
The empty string has no characters. The value of
charNumber = ''.length;
lengththat takes a string and returns the number of characters of the string.