Parseint in javascript
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You can call the function to determine if the result of parseInt is NaN. Always specify a radix to avoid this unreliable behavior. Draft Browser compatibility The compatibility table in this page is generated from structured data.
For arithmetic purposes, the NaN value is not a number in any radix. For radices above 10, the letters of the alphabet indicate numerals greater than 9. To convert number to its string literal in a particular radix use intValue. Return value An integer number parsed from the given string.
Leading whitespace in the string argument is ignored. For example, for hexadecimal numbers base 16 , A through F are used. The following may have an octal result, or it may have a decimal result. If the string argument is not a string, then it is converted to a string using the abstract operation. For radices above 10, the letters of the alphabet indicate numerals greater than 9. If the first character cannot be converted to a number, parseInt returns NaN. If you'd like to contribute to the data, please check out and send us a pull request. Always specify a radix to avoid this unreliable behavior. If the first character cannot be converted to a number, is returned. Leading white space in string is ignored.
Number.parseInt() - If you'd like to contribute to the data, please check out and send us a pull request. For example, a radix of 10 indicates to convert from a decimal number, 8 octal, 16 hexadecimal, and so on.
The source for this interactive example is stored in a GitHub repository. If you'd like to contribute to the interactive examples project, please clone and send us a pull request. Syntax parseInt string, radix ; Parameters string The value to parse. If the string argument is not a string, then it is converted to a string using the abstract operation. Leading whitespace in the string argument is ignored. Return value An integer number parsed from the given string. If the first character cannot be converted to a number, is returned. Description The parseInt function converts its first argument to a string, parses it, and returns an integer or NaN. If not NaN, the returned value will be the integer that is the first argument taken as a number in the specified radix base. For example, a radix of 10 indicates to convert from a decimal number, 8 octal, 16 hexadecimal, and so on. For radices above 10, the letters of the alphabet indicate numerals greater than 9. For example, for hexadecimal numbers base 16A through F are used. If parseInt encounters a character that is not a numeral in the specified radix, it ignores it and all succeeding characters and returns the integer value parsed up to that point. Leading and trailing spaces are allowed. Because some numbers include the parseint in javascript character in their string representation e. Exactly which radix is chosen is implementation-dependent. For this reason parseint in javascript specify a radix when using parseInt. If the first character cannot be converted to a number, parseInt returns NaN. For arithmetic purposes, the NaN value is not a number in any radix. You can call the function to determine if the result of parseInt is NaN. If NaN is passed on to arithmetic operations, the operation results will also be NaN. To convert number to its string literal in a particular radix use intValue. The following may have an octal result, or it may have a decimal result. Always specify a radix to avoid this unreliable behavior. Leading white space in string is ignored. If radix is undefined or 0, it is assumed to be 10 except when the number begins with the character pairs 0x or 0X, in which case a radix of 16 is assumed. Many implementations have not adopted this behavior as of 2013, and because parseint in javascript browsers must be supported, always specify a radix. A stricter parse function It is sometimes useful to have a stricter way to parse int values.
