From fbb510d75ddd30c032a3998050ab3897eeb6ad6c Mon Sep 17 00:00:00 2001 From: Kiko Beats Date: Tue, 6 Jun 2017 21:32:19 +0200 Subject: [PATCH] Update parse-string.md --- docs/number/parse-string.md | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/docs/number/parse-string.md b/docs/number/parse-string.md index ea4ec2a..5ab1a72 100644 --- a/docs/number/parse-string.md +++ b/docs/number/parse-string.md @@ -2,13 +2,13 @@ There is a lot of ways to convert a `String` into a `Number`: -| | '1000' | '10.9' | '1,000.9' | '011' | '10c' | '$10' | -|-------------------|--------|--------|-----------|-------|-------|-------| +| | '1000' | '10.9' | '1,000.9' | '011' | '10c' | '$10' | +|---------------------|--------|--------|-----------|-------|-------|-------| | `parseInt(num)`     | 1000   | 10     | 1         | 11   | 10   | NaN   | | `parseInt(num, 10)` | 1000   | 10     | 1         | 11   | 10   | NaN   | | `parseFloat(num)`   | 1000   | 10.9   | 1         | 11   | 10   | NaN   | | `Number(num)`       | 1000   | 10.9   | NaN       | 11   | NaN   | NaN   | -| `~~num`            | 1000   | 10     | 0         | 11   | 0     | 0     | +| `~~num`            | 1000   | 10     | 0         | 11   | 0     | 0     | | `num / 1`           | 1000   | 10.9   | NaN       | 11   | NaN   | NaN   | | `num * 1`           | 1000   | 10.9   | NaN       | 11   | NaN   | NaN   | | `num - 0`           | 1000   | 10.9   | NaN       | 11   | NaN   | NaN   | @@ -18,14 +18,16 @@ Despite the differences of the results, it does not matter too much the method u `+num` is the shortest way and probably used in JavaScript minification tools. -Probably use `Number` constructor is enough. +Use `Number(num)` constructor should be enough evidence of your intention. -If you wan to use one of the tricky ways, keep in mind that the intention is not always obvious. +If you want to use one of the tricky ways, keep in mind that the intention is not always obvious. -A solution could be involve them in a named function to make it evident: +A solution could be wrap them into a named function: ```js const toNumber = num => ~~num console.log(toNumber('10.9') // => 10.9 ``` + +but now you are not earning anything you can not do already with `Number(num)`.