random password generator javascript for i code example
Example 1: javascript password generator
var Password = {
_pattern : /[a-zA-Z0-9_\-\+\.]/,
_getRandomByte : function()
{
if(window.crypto && window.crypto.getRandomValues)
{
var result = new Uint8Array(1);
window.crypto.getRandomValues(result);
return result[0];
}
else if(window.msCrypto && window.msCrypto.getRandomValues)
{
var result = new Uint8Array(1);
window.msCrypto.getRandomValues(result);
return result[0];
}
else
{
return Math.floor(Math.random() * 256);
}
},
generate : function(length)
{
return Array.apply(null, {'length': length})
.map(function()
{
var result;
while(true)
{
result = String.fromCharCode(this._getRandomByte());
if(this._pattern.test(result))
{
return result;
}
}
}, this)
.join('');
}
};
Example 2: javascript password generator
<input type='text' id='p'/><br/>
<input type='button' value ='generate' onclick='document.getElementById("p").value = Password.generate(16)'>