Apr 16, 2014 · It's behaving correctly according to the way the language is specified (e.g. ECMA 262), where it's called the remainder operator rather than the modulus operator. From the spec: From the spec: The result of an ECMAScript floating-point remainder operation is determined by the rules of IEEE arithmetic:

Jul 8, 2013 · As you say, the % sign is used to take the modulus (division remainder). In w3schools' JavaScript Arithmetic page we can read in the Remainder section what I think to be a great explanation. In arithmetic, the division of two integers produces a quotient and a remainder.

Dec 6, 2015 · See this documentation or the specification for more information on JavaScript arithmetic operators. % (Modulus) The modulus operator is used as follows: var1 % var2. The modulus operator returns the first operand modulo the second operand, that is, var1 modulo var2, in the preceding statement, where var1 and var2 are variables.

having trouble to understand JavaScript 100%3 and answer comes out 1 in console. 0. loop popup confusion.

Jun 5, 2014 · and it was not too painful, but still, I did not understand the logic behind the result of the calculation. So, is there somebody, who kows how Javascript's modulo calculation works, as I am really puzzled and I see -0 as a result of -4 % 4 to be the joke of the month.

Dec 17, 2010 · Though it isn't behaving as you expected, it doesn't mean that JavaScript is not 'behaving'. It is a choice JavaScript made for its modulo calculation. Because, by definition either answer makes sense. See this from Wikipedia. You can see on the right how different languages chose the result's sign.

Oct 19, 2010 · Why does 49.90 % 0.10 in JavaScript return 0.09999999999999581? I expected it to be 0. I'll just leave this here for future reference, but here is a handy function that can more precisely handle Remainder (since JS doesn't have a modulo operator) involving floats.

Apr 18, 2012 · Im currently in process of learning Javascript. And I have seen the following code, which confuses me. Description of code: Starting on line 1, the function isOdd takes a number n and returns a bo...

Mar 5, 2020 · I know how modulus works in general, but it is not clear to me how the operator handles strings. Recently, I had to write a script which checks if a name (string) contains an even number of letters. This actually worked, using modulus 2 and checking if result was 1 or 0:

Jan 11, 2013 · Javascript's modulo operator returns a negative number when given a negative number as input (on the left side). 14 % 5 // 4 15 % 5 // 0 -15 % 5 // -0 -14 % 5 // -4 (Note: negative zero is a distinct value in JavaScript and other languages with IEEE floats, but -0 === 0 so you usually don't have to worry about it.)