0xc4115 0x4cf8
Im not sure what data type this is so my question would be:
What data type is this and how can I convert it to something more manageable using NODE.JS?
you can convert Hexadecimal to Decimal by this
let hex_num = "0xc4115";
console.log(Number(hex_num)); #803093
In general you have the format 0x for hexadecimal, 0b for binary and 0 for octal. All this represent Numbers. JavaScript converts to decimal all of this types automatically. In case you want to do it yourself, you can use parseInt(number,base).
Related
JavaScript converts all the big numbers into scientific notation.
eg: '90938498237058927340892374089' this string when converted to an integer will come out like this scientific notation '9.093849823705893e+28'.
How can I convert the data type from String to an Integer and avoiding the scientific notation?
In JS all the numbers are treated as floating-point so in end, they end up with precision you can use try BigInt('90938498237058927340892374089') which will give you exact number from string to number.
apart from this, you can also have a look here Javascript - parse string to long
this link might be helpful for you.
Try to use BigInt type:
BigInt('90938498237058927340892374089');
It returns BigInt number with 'n'-literal:
90938498237058927340892374089n
I need a way to convert a letter into a number and then be able to convert a number into binary. Does anyone know how to do this?
To convert a character into it's ASCII representation, use charCodeAt(0). For example:
'a'.charCodeAt(0); // 97
To convert a decimal number into a binary number, use toString(2). For example:
(122).toString(2); // "1111010"
This method has some issues dealing with negative numbers though. let me know if you will be dealing with them.
Like this:
parseInt("12").toString(2)
Result:
"1100"
I'm trying to use BigQuery's INT64 type to hold bit encoded information. I have to use a javascript udf function and I'd like to use all the 64 bits.
My issue is that javascript only deals with int32 so 1 << 32 == 1 and I'm not sure how to use the full 64 range that BigQuery supports in the udf.
It’s not possible to directly convert Big Query’s INT64 type to JavaScript UDF, neither as input nor output, as JavaScript does not support 64-bit integer type [1]. You could use FLOAT64 instead, as far as the values are less than 2^53 - 1, since it follows the IEEE 754-2008 standard for double precision [2]. You can also use a string containing the number value. Here is the documentation for supported external UDF data types [3].
I have a decimal, that could look like 123,34, 123123,09, 1234, 123.34, 123123.09.
My MVC application supports localization, I need to find a safe way to convert the most likely user input into a decimal. So for decimal value . will represent as , (e.g 12.34 => 12,34)
I want to get this value in javascript as
var maxAmount = parseFloat("#Model.MaxAmount");
if MaxAmount is 1,25 I will get a result as 1 only.
How is that possible?
Why not specify the format for the model property using MaxAmount.ToString(CultureInfo.InvariantCulture) - that way the decimal will always be serialized as 1.25 and still be properly interpreted by JavaScript.
Just do the replace for the edge case of xxx,xx:
var maxAmount = parseFloat('#Model.MaxAmount'.replace(',', '.'));
This will convert string of type "123,45" to "123.45" but keep the "123.45" in the same format.
How can I transform a value like OxFF to short and long types. is there a standard function for this use?
JavaScript only knows about numbers which are floats.
You can use parseInt to parse that string into an integer.
It really is going to be a float but without a fraction.
Either pass the radix 16 or let JavaScript autodetect it:
parseInt("0xFF", 16)
parseInt("0xFF")
http://jsfiddle.net/bikeshedder/wVRh2/