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yckart/LICENSE.txt

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Last active December 21, 2015 23:48
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Password Strength
Raw
annotated.js
function (a) {
return (
(a.length >= 8) + // length
/[a-z]/.test(a) + // lowercase
/[A-Z]/.test(a) + // uppercase
/\d/.test(a) + // number
/[^\w\s]|_/.test(a) // special
) * 20
};
Raw
index.js
function(a){return((a.length>=8)+/[a-z]/.test(a)+/[A-Z]/.test(a)+/\d/.test(a)+/[^\w\s]|_/.test(a))*20}
Raw
LICENSE.txt
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
Version 2, December 2004
Copyright (C) 2013 Yannick Albert <http://yckart.com>
Everyone is permitted to copy and distribute verbatim or modified
copies of this license document, and changing it is allowed as long
as the name is changed.
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. You just DO WHAT THE FUCK YOU WANT TO.
Raw
package.json
{
"name": "passwordStrength",
"description": "Checks a string for its password strength.",
"keywords": [
"password",
"strength",
"indicator",
"regexp",
"string"
]
}
Raw
test.html
<!DOCTYPE html>
<title>Foo</title>
<input id="input">
<div id="ret"></div>
<script>
var strength = function(a){return((a.length>=8)+/[a-z]/.test(a)+/[A-Z]/.test(a)+/\d/.test(a)+/[^\w\s]|_/.test(a))*20};
document.getElementById('input').onkeyup = function () {
document.getElementById('ret').innerHTML = strength(this.value);
};
</script>
@atk
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atk commented Aug 30, 2013

n / 5 * 100 = n * 20 and \d is shorter than [0-9]:

function(a){return((a.length>=8)+/[A-Z]/.test(a)+/[a-z]/.test(a)+/\d/.test(a)+/[^\w\s]|_/.test(a))*20}

Even shorter if you use replace inside eval (ugly, but very short):

function(a){return 20*eval("/.{8}1/[A-Z]1/[a-z]1/\\d1/[^\\w\\s]|_10".replace(/1/g,'/.test(a)+'))}

@yckart
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Author

yckart commented Aug 30, 2013

Good point! I merged your 1st suggest. And ignored the 2nd one, eval === evil and looks too ugly to me... ;)

@atk
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atk commented Aug 30, 2013

That was just to show how short it could be done. I wouldn't do something like that in real life.

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