parsefloat is a global function and does not belong to any object.
Parsefloat parses its string argument into a floating-point number and returns it. If a character other than a sign (+ or-), a number (0-9), a decimal point, or an exponent (e or E) in scientific notation is encountered during parsing, it ignores the character and all subsequent characters, returning the currently resolved floating-point number. Whitespace characters at the top of the parameter string are ignored.
If the first character of the argument string cannot be parsed into a number, parsefloat returns NaN.
Tip: You can call the IsNaN function to determine whether the return result of Parsefloat is NaN. If Nan is used as the operand of any mathematical operation, the result of the operation must also be Nan.
Example:
<script type= "Text/javascript" >document.write (parsefloat ("ten")) document.write (parsefloat ("10.00")) document.write ("10.33") document.write (parsefloat ("parsefloat") document.write (parsefloat ("60")) document.write (parsefloat ("Years")) document.write (parsefloat ("He was")) </script>
Output:
101010.33346040NaN
Decimal is retained
parseint ()
Parameters:
Here are the details of the parameters:
return Value:
parseint (String s): This returns a integer (decimal only).
parseint (int i): This returns an integer, given a string representation of decimal, binary, octal, or hexadecimal (radix e Quals, 2, 8, or respectively) numbers as input.
Example:
public class test{public static void Main (String args[]) { int x =integer.parseint ("9"); Double C = double.parsedouble ("5"); int B = Integer.parseint ("444", +);//by Www.yiibai.com/java System.out.println (x); System.out.println (c); System.out.println (b); }}
This will output the following results:
95.01092
Parsefloat (the value of the string). ToString (). Replace (/(\.\d{2}) \d+$/, "$");(reserved Two decimal places will not be rounded);
If you want to increase the percentage, write this:
Parsefloat (value of String) *100). ToString (). Replace (/(\.\d{2}) \d+$/, "$") + '% '; the inside of the multiply 100 or divided by 100 to see the specific conversion type, decimal, the whole number is divided.
parseint () and parsefloat () two methods are searched from the left string, if the first character is not a number or a minus sign (in parsefloat () it can also be a decimal point). Once they encounter such a character, they return the number they extracted.
String converted to a numeric percentage, etc.