Number Type
JavaScript does not have an integer type and a float type. All numbers are treated as float by default.
var total = 2 + 3;
text = total; // this will convert the number to 5.0
To force a number to be treated as an integer, use the toFixed() method of number object and give a decimal point of zero:
text = total.toFixed(0); // this generates a string 5
Number constants can be in decimal format, hexadecimal format if it starts with '0x', and octal format if it starts with '0'.
decimal_number = 255 // -- Decimal is the default
hex_number = 0xff
fp_number = 2.456 // -- Floating point number
Numbers can be used in computation using the usual operators, +, *, /, -. The increment and decrement operators (++, --) are also available in Java.
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