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Build tree array from flat array in javascript
I have a complex json file that I have to handle with javascript to make it hierarchical, in order to later build a tree.
Every entry of the json has :
id : a unique id,
parentId : the id of the parent node (which is 0 if the node is a root of the tree)
level : the level of depth in the tree
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extra qualification error in C++
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This is because you have the following code:
class JSONDeserializer
{
Value JSONDeserializer::ParseValue(TDR type, const json_string& valueString);
};
This is not valid C++ but Visual Studio seems to accept it. You need to change it to the following code to be able ...
How to extract request http headers from a request using NodeJS connect
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To see a list of HTTP request headers, you can use :
console.log(JSON.stringify(req.headers));
to return a list in JSON format.
{
"host":"localhost:8081",
"connection":"keep-alive",
"cache-control":"max-age=0",
"accept":"text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*...
Group by month and year in MySQL
...tamp on each row, how would you format the query to fit into this specific json object format.
12 Answers
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are there dictionaries in javascript like python?
...trings (enclosed in double quotes " " ). The object notation is as seen in JSON for data interchage and was inspired by the literal object notation; it is worth noting that JSON is usually used in string context
– Chief
Jan 24 '15 at 17:53
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Sending HTTP POST Request In Java
... os.write(out);
}
// Do something with http.getInputStream()
Sending JSON
We can also send json using java, this is also easy:
byte[] out = "{\"username\":\"root\",\"password\":\"password\"}" .getBytes(StandardCharsets.UTF_8);
int length = out.length;
http.setFixedLengthStreamingMode(length...
BLE协议—广播和扫描 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...以下几种：
例如：0x6代表不支持BR/EDR
广播响应包数据格式与广播数据格式一样，可以用于拓展广播数据大小，数据最大同样为31字节。
通常动态数据使用常规广播包发送，固定数据则使用响应包进行发送。广播间隔BLE设备每...
How to check if a user is logged in (how to properly use user.is_authenticated)?
...ich can cause some strange bugs.
For example, I had a view that returned JSON
return HttpResponse(json.dumps({
"is_authenticated": request.user.is_authenticated()
}), content_type='application/json')
that after updated to the property request.user.is_authenticated was throwing the exceptio...
Why can't you modify the data returned by a Mongoose Query (ex: findById)
...h you can res.send() it) is actually a Mongoose Document object, and NOT a JSON object. But you can fix this with one line...
Survey.findById(req.params.id, function(err, data){
var len = data.survey_questions.length;
var counter = 0;
var data = data.toJSON(); //turns it into JSON YAY!...
Warning: Found conflicts between different versions of the same dependent assembly
...s? For example, I referenced a project, which has dependency on Newtonsoft.Json, Version=6.0.0.0, and I referenced another project, which has dependency on Newtonsoft.Json, Version=4.5.0.0
– Edward Ned Harvey
Oct 10 '14 at 19:39
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