Why Doesn't Javascript Let You Call Methods On Numbers Directly?

In Ruby, you can do this: 3.times { print 'Ho! ' } # => Ho! Ho! Ho! I tried to do it in JavaScript: Number.prototype.times = function(fn) { for (var i = 0; i < this; i++

Solution 1:

The . after the digits represents the decimal point of the number, you'll have to use another one to access a property or method.

3..times(function() { console.log("hi"); });

This is only necessary for decimal literals. For octal and hexadecimal literals you'd use only one ..

03.times(function() { console.log("hi"); });//octal0x3.times(function() { console.log("hi"); });//hexadecimal

Also exponential

3e0.times(function() { console.log("hi"); });

You can also use a space since a space in a number is invalid and then there is no ambiguity.

3 .times(function() { console.log("hi"); });

Although as stated by wxactly in the comments a minifier would remove the space causing the above syntax error.