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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!...
BLE协议—广播和扫描 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...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...
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
...
Using Rails serialize to save hash to database
...
Exact implementation will depend on your database, but PostgreSQL now has json and jsonb columns which can natively store your hash/object data and allow you to query against the JSON with ActiveRecord!
change your migration and you're done.
class Migration0001
def change
add_column :users,...
How to sort an array based on the length of each element?
...d"];
array.sort(function(a, b){return b.length - a.length});
console.log(JSON.stringify(array, null, '\t'));
For ascending sort order: a.length - b.length
For descending sort order: b.length - a.length
ES6 solution
Attention: not all browsers can understand ES6 code!
In ES6 we can use an a...
What's the difference between require and require-dev? [duplicate]
... @ScottDavidTesler this package the package you provide in your composer.json file like "require-dev": { // this package('s) }
– Rahil Wazir
Jun 25 '14 at 13:06
9
...
深入浅出计算机字符集编码 - C/C++ - 清泛网 - 专注C/C++及内核技术
...入用户手册。
为什么会乱码?
字符在保存时的编码格式如果和要显示的编码格式不一样的话，就会出现乱码问题。
我们的Web系统，从底层数据库编码、Web应用程序编码到HTML页面编码，如果有一项不一致的话，就会出现乱...
How to specify Composer install path?
... "package": {
"name": "sfGuardPlugin",
So, your composer.json should look like this:
{
"config": {
"vendor-dir": "plugins"
},
"repositories": [
{
"type": "package",
"package": {
"name": "sfGuardPlugin",
...
In a javascript array, how do I get the last 5 elements, excluding the first element?
...
cutOffFirstAndLastFive([1, 55, 77, 88]);
console.log(
'Tests:',
JSON.stringify(cutOffFirstAndLastFive([1, 55, 77, 88])),
JSON.stringify(cutOffFirstAndLastFive([1, 55, 77, 88, 99, 22, 33, 44])),
JSON.stringify(cutOffFirstAndLastFive([1]))
);
...