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How to convert numbers to Hex (hexadecimal) in javascript

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Release: 2022-01-12 11:13:03
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In javascript, you can use the toString() method of the Number object to convert the number to Hex (hexadecimal). This method can parse the specified value and try to return a string of the specified base (base) Representation form, the syntax is "specify digital object.toString(16);".

How to convert numbers to Hex (hexadecimal) in javascript

The operating environment of this tutorial: windows7 system, javascript version 1.8.5, Dell G3 computer.

In JavaScript, you can use the toString() method of the Number object to convert the number to Hex (hexadecimal).

Example:

var num = 255;
console.log(num.toString(16));//输出FF
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How to convert numbers to Hex (hexadecimal) in javascript

Description:

toString() method can convert a Number object Convert to a string and return the result.

Syntax:

NumberObject.toString(radix)
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ParametersDescription
radixOptional. Specifies the base in which the number is represented, making it an integer between 2 and 36. If this parameter is omitted, base 10 is used. Note, however, that the ECMAScript standard allows implementations to return any value if the parameter is a value other than 10.

# The toString() method parses its first argument and attempts to return a string representation of the specified radix.

For letters with a base greater than 10, the letters represent numbers greater than 9. For example, for hexadecimal numbers (base 16), use a through F.

If no base is specified, the preferred base is assumed to be 10.

var x='110';  
alert(parseInt(x,2));  //6    =>以2进制解析110
alert(parseInt(x,8));  //72    =>以8进制解析110
alert(parseInt(x,16)); //272    =>以16进制解析110
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