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JavaScript's parseInt function is all about converting a string to an integer. The function takes a string value as an argument and converts it to a numerical value with no decimal places, or alternatively the value NaN.
The parseInt function converts its first argument to a string, parses that string, then returns an integer or NaN . If not NaN , the return value will be the integer that is the first argument taken as a number in the specified radix .
parseInt() doesn't always correctly convert to integer In JavaScript, all numbers are floating point. Integers are floating point numbers without a fraction. Converting a number n to an integer means finding the integer that is “closest” to n (where “closest” is a matter of definition).
parseFloat( ) parseFloat() is quite similar to parseInt() , with two main differences. First, unlike parseInt() , parseFloat() does not take a radix as an argument. This means that string must represent a floating-point number in decimal form (radix 10), not octal (radix 8) or hexadecimal (radix 6).
I get the total_amount in cart code of ecommerce web page, after I use toString function, but when I convert the 14.82 string to int number, the decimals disappear.
<script>
var total_amount_string = <?=json_encode($cart['total_pvp'])?>;//-> 14,82
var total_amount_int = parseInt(total_amount_string).toFixed(2); //-> 14.00(here is the error)
console.log(total_amount_string) //-> 14,82
console.log(total_amount_int) //-> 14.00
</script>
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