In the above syntax Math.round() is the method of formatting a number and num is the number to be formatted with two decimals. Syntaxįollowing is the syntax for rounding off a given number in JavaScript − Math.round(num*100)/100 We will use the method to format a number with two decimals. The Math.round() method returns the given numeric expression rounded to its nearest number. In the above program, we have used the number.toFixed(2) rounds a number to the number with two decimal positions. The example below will illustrate numbers before and after formatting in JavaScript. STEP 3 − Display the result on the user screen.The result is formatted with two decimals. STEP 1 − Declare a variable named “ num” and assign a number to the variable.In the above syntax toFixed() is the method of formatting a number with twoIn the above syntax toFixed() is the method of formatting a number with two decimals in JavaScript and number is the number to be formatted with two decimals. Syntaxįollowing is the syntax format for a number up to 2 decimals using the toFixed() method − number.toFixed(2) it returns a string representation of the number that does not use exponential notation and has the exact number of digits after the decimal place. The toFixed() method formats a number with a specific number of digits to the right of the decimal. In JavaScript, we can apply many methods to perform the formatting. Formatting a number means rounding the number up to a specified decimal place. The methods like String.format() and DecimalFormat.format() are used to alter the digits after decimal places and round off the values to their nearest ones.This tutorial will teach us how to format a number with two decimals using JavaScript. It uses this property to convert double to string.Įach method can be used for different purposes and places. +operator - The +operator in Java is used to concatenate strings.StringBuffer and StringBuilder - StringBuffer and StringBuilder are classes in Java to create a modifiable chain and sequences of characters using the append() method.DecimalFormat.format() - DecimalFormat.format() is a method in package that converts double to string with specified number of digits after decimal.toString() - toString() is an inbuilt function in Java to convert given value to string.String.format() - It is used in java to return formatted strings with the specified format and arguments.valueOf() - String.valueOf() is an inbuilt method of String class in Java that converts different parameters to strings.If we want to do it for other purposes, we can convert it using the following methods: Conclusionĭouble values automatically get converted to string at the time of printing. This method helps us in rounding decimals. The above code helps us in adjusting the number of digits after the decimal to two in the output string. The following code converts a double number to a string using the String.valueOf method. Parameters: object, float, char, double, int, float, long, char String output = String.valueOf(parameter).Since it is an inbuilt method, it is already present in the java directory. It works with parameters like object, float, char, double, int, long, and char. String.valueOf() is an inbuilt method of String class in Java which converts different parameters to string. Example 1: Converting from Double to String Using valueOf() Method in Java Let's have a closer look at each one of them. Each of them has different use and properties. There are different inbuilt functions to convert double to string lie valueOf(), toString(), DecimalFormat.format() and many others. Strings help us in storing a large number that other data types fail to store. The double data type can be converted to string in JAVA using inbuilt functions present in Java class libraries.
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