toFixed to format decimal places of a number in JavaScript

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toFixed Math function to format number

We can use toFixed function in math to format a number upto required decimal places. The value we get is after rounding the number upto the decimal place required. This function is frequently used to format currency, marks etc.

Here is the syntax.

my_val.toFixed(4)

my_val is the variable which stores the number. Here we are formatting the number upto 4 decimal places.

Let us try with some examples with different number values.

var my_val=11.257;
document.write (my_val.toFixed(2)); // output 11.26
document.write (" ---- ");

var my_val=11.25;
document.write (my_val.toFixed(1)); // output 11.3
document.write (" ---- ");

var my_val=11.978;
document.write (my_val.toFixed(4)); // output 11.9780
document.write (" ---- ");

You can read the php math number format