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Representing null in JSON
...ar json1 = '{}';
var json2 = '{"myCount": null}';
var json3 = '{"myCount": 0}';
var json4 = '{"myString": ""}';
var json5 = '{"myString": "null"}';
var json6 = '{"myArray": []}';
console.log(JSON.parse(json1)); // {}
console.log(JSON.parse(json2)); // {myCount: null}
console.log(JSON.parse(json3));...
How to get a variable name as a string in PHP?
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edited Nov 1 '08 at 1:11
answered Nov 1 '08 at 0:42
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Why does “split” on an empty string return a non-empty array?
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Daniel C. SobralDaniel C. Sobral
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How do I convert a String object into a Hash object?
... => Object.new}, then its string representation is "{:a=>#<Object:0x7f66b65cf4d0>}", and I can't use eval to turn it back into a hash because #<Object:0x7f66b65cf4d0> isn't valid Ruby syntax.
However, if all that's in the hash is strings, symbols, numbers, and arrays, it should wo...
Git Cherry-pick vs Merge Workflow
... had a colleague who had 3 months worth of changes to merge, and got some 9000 conflicts in 250000 line code-base. What we did to fix is do the merge one month's worth at a time: conflicts do not build up linearly, and doing it in pieces results in far fewer than 9000 conflicts. It was still a lot...
App Inventor 2 UrsPahoMqttClient 拓展 - 物联网轻量级MQTT协议 · App Inventor 2 中文网
... MQTT 服务器建立网络连接的最大时间间隔。默认超时为 30 秒。值为 0 表示禁用超时处理，这意味着客户端将一直等待，直至网络连接成功或失败。
TimeToWait - 等待时间
设置控制权返回给调用App之前等待操作完成的最长等待时...
How do I move to end of line in Vim?
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2106
Just the $ (dollar sign) key. You can use A to move to the end of the line and switch to editi...
How to include a Font Awesome icon in React's render()
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answered Apr 16 '14 at 18:01
BrigandBrigand
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When to use , tag files, composite components and/or custom components?
I started using JSF 2.0 with Facelets recently and got puzzled by new composite components knowing existing <ui:include> and other templating techniques offered by Facelets 1.x.
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How can bcrypt have built-in salts?
... in the database, a bcrypt "hash" might look something like this:
$2a$10$vI8aWBnW3fID.ZQ4/zo1G.q1lRps.9cGLcZEiGDMVr5yUP1KUOYTa
This is actually three fields, delimited by "$":
2a identifies the bcrypt algorithm version that was used.
10 is the cost factor; 210 iterations of the key derivatio...