Allow leading decimal point (no-floating-decimal)

[macabeus]

trafficstars

Currently, the lint doesn't allow a code like:

value = .001

then, we must rewrite to

value = 0.001

But, the number .001 is easy to note that it's a float number and not 1.

If someone forgot the operator (for example, writing x.1 instead of x+.1), Node will raise an error:

➜  ~ node
> x.1
x.1
 ^^

SyntaxError: Unexpected number

And, a code like:

const values = [
  .10,
  .05,
  .42,
]

is cleaner that a code with redundant zeros:

const values = [
  0.10,
  0.05,
  0.42,
]

I think that we need to allow leading decimal point

[matheusvellone]

Concordo com a descrição que tem na docs do eslint (referência abaixo). Acredito que perdemos legibilidade se desabilitar a regra pois, pelo menos para mim, é mais natural ver 0.xx do que .xx

https://eslint.org/docs/rules/no-floating-decimal

Although not a syntax error, this format for numbers can make it difficult to distinguish between true decimal numbers and the dot operator. For this reason, some recommend that you should always include a number before and after a decimal point to make it clear the intent is to create a decimal number.