함수 is_int()

(Is int에서 넘어옴)
함수 is_int()

1 Java[ | ]

Java
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public static boolean isInteger(String input) {
	try {
		Integer.parseInt(input);
		return true;
	}
	catch (NumberFormatException e) {
		return false;
	}
}
...
// true
System.out.println( isInteger("42") );
System.out.println( isInteger("-1") );

// false
System.out.println( isInteger("-1.0") );
System.out.println( isInteger("3.14") );

2 PHP[ | ]

PHP
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# bool(true)
var_dump(is_int(23));

# bool(false)
var_dump(is_int("23"));
var_dump(is_int(23.5));
var_dump(is_int(true));
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3 Python[ | ]

Python
Copy
def is_int(x):
    return x == int(x)

# True
print( is_int(42) )
print( is_int(-1.0) )
# False
print( is_int(3.14) )
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4 같이 보기[ | ]