In js, the most common method for getting the decimal point and the two decimal points is the rounding function. I have previously introduced this common function in js, which is useful here, next, let's take a look at some methods to get the float
In js, the most common method for getting the decimal point and the two decimal points is the rounding function. I have previously introduced this common function in js, which is useful here, next let's take a look at some methods to sum up the two
Description of the decimal system Conversion Function, decimalsystem
1. Description of the decimal system Conversion Function1. Decimal to binary decbin () function, as shown in the following example:Echo decbin (12); // output 1100Echo decbin (26);
Var sum = 0;For (var I = 0; I Sum ++ = 0.1;}Console. log (sum );Will the above program output 1?Among the 25 JavaScript interview questions that you need to know, the 8th questions briefly explain why JavaScript cannot correctly handle decimal
JS in the decimal point after the two-bit method is the most commonly used is the rounding function, before I introduced the JS rounding a common function, here just use, below we take a float type decimal point after two some methods summary http://
Javascript Regular Expression decimal type, regular expression decimal
If you want to read and understand it, read it. If you only need results, jump to the end of this article.
I used to use a javascript Regular Expression to match the decimal type.
Below we will introduce how JavaScript preserves two decimal places:RoundedThe following processing results are rounded:var num =2.446242342// output result is 2.45Not roundedThe following processing results are not rounded:First, put the
Use JavaScript to take float type two digits after the decimal point, example 22.127456 to 22.13, how to do?
1. Discard the fractional part and keep the whole number of parts
parseint (5/2)
2. Take up the whole, there are decimal numbers on the
Convert the string to decimal by using JavaScript in hexadecimal notation.
JS is a magical language. Many internal functions can help us convert data (in;
Javascript can be directly in hexadecimal notation;Var a = 0xff; // 255.
Convert any
Here are some of the ways that JavaScript preserves two decimal places:roundedthe following processing results are rounded:
var num =2.446242342;
num = num.tofixed (2); Output is 2.45
Not roundedthe following processing results are not
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