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Is “double hashing” a password less secure than just hashing it once?
...107
Hashing 93 => 108
Hashing 94 => 109
Hashing 95 => 110
Hashing 96 => 111
Hashing 97 => 112
Hashing 98 => 113
Hashing 99 => 114
Hashing 100 => 145
Hashing 101 => 146
Hashing 102 => 147
Hashing 103 => 148
Hashing 104 => 149
Hashing 105 => 150
Hashing 106 =>...
Understanding the Use of ColorMatrix and ColorMatrixColorFilter to Modify a Drawable's Hue
...4, 1.30, 1.36, 1.42, 1.48, 1.54,
1.60, 1.66, 1.72, 1.78, 1.84, 1.90, 1.96, 2.0, 2.12, 2.25,
2.37, 2.50, 2.62, 2.75, 2.87, 3.0, 3.2, 3.4, 3.6, 3.8,
4.0, 4.3, 4.7, 4.9, 5.0, 5.5, 6.0, 6.5, 6.8, 7.0,
7.3, 7.5, 7.8, 8.0, 8.4, 8.7, 9.0, 9.4, 9.6, 9.8,
10.0
};
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MongoDB数据导出导入工具：mongoexport,mongoimport - 大数据 & AI - 清泛...
..., "age" : 20, "name" : "kobe" }
{ "_id" : ObjectId("5031144a50f2481577ea81e6"), "classid" : 1, "age" : 23, "name" : "nash" }
{ "_id" : ObjectId("5031145a50f2481577ea81e7"), "classid" : 2, "age" : 18, "name" : "james" }
{ "_id" : ObjectId("5031146a50f2481577ea81e8"), "classid" : 2, "age" : 19, "na...
How does this print “hello world”?
...64₁₀ = 1000000₂ (l & 31 | 64).
So far the 5-bit group is of the form: 10xxxxx₂ (space would be 1011111₂ = 95₁₀).
If we can map space to 0 unaffecting other values, then we can turn the 6th bit on and that should be all.
Here is what the mod 95 part comes to play, space is 1011111...
Converting datetime.date to UTC timestamp in Python
...ds
utc_time = calendar.timegm(utc_timetuple) + datetime.microsecond / 1E6
return utc_time
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Random hash in Python
...
>>> secrets.token_hex(nbytes=16)
'17adbcf543e851aa9216acc9d7206b96'
>>> secrets.token_urlsafe(16)
'X7NYIolv893DXLunTzeTIQ'
>>> secrets.token_bytes(128 // 8)
b'\x0b\xdcA\xc0.\x0e\x87\x9b`\x93\\Ev\x1a|u'
...
Are Javascript arrays sparse?
...for ... of" will walk through the entire range of possible integer indices form 0 to the length, visiting many that return 'undefined'. BUT 'for ... in' loops might do as you expect, visiting only the defined keys.
Here's an example using Node.js:
"use strict";
const print = console.log;
let a =...
推荐引擎easyrec半天学习分享 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
....getJSON(
"/easyrec-web/api/1.0/json/otherusersalsoviewed?apikey=32b0c25e6bc63bf1627dc7e877f81b3d&tenantid=EASYREC_DEMO&itemid=43",
function(transport) {
var json = eval(transport);
var items = json.recommendeditems.item;
if( "undefined" == typeof(items.length) ) {
items = new Arr...
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...的人有帮助。
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