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What's the difference between Char.IsDigit() vs Char.IsNumber()
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IsDigit(Char) Method. This method is used to check whether the specified Unicode character matches decimal digit or not. If it matches then it returns True otherwise return False.
In C#, we can use the IsDigit() method to check if a character is numeric or a digit. The IsDigit() method can be used on a single character or on a string. In the case of a string, we have to specify the index position of the character in the string.
isdigit() function in C/C++ with Examples The isdigit(c) is a function in C which can be used to check if the passed character is a digit or not. It returns a non-zero value if it's a digit else it returns 0. For example, it returns a non-zero value for '0' to '9' and zero for others.
We can check whether the given character in a string is a number/letter by using isDigit() method of Character class. The isDigit() method is a static method and determines if the specified character is a digit.
// 1/2 symbol
Char.IsNumber('½'); // true
Char.IsDigit('½'); // false
// Unicode character for Roman numeral 5 (V)
Char.IsNumber('\x2165'); // true
Char.IsDigit('\x2165'); // false
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