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How do I partially update an object in MongoDB so the new object will overlay / merge with the exist

...Doe', address: { city: 'NY', street: 'Eighth Avenu', number: 123 } }; var instructions = dot.flatten(person) console.log(instructions); /* { $set: { 'firstName': 'John', 'lastName': 'Doe', 'address.city': 'NY', 'address.street': 'Eighth Avenu', 'address.numb...
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how to change default python version?

...in 8 Apr 28 15:51 pydoc3@ -> pydoc3.2 -rwxrwxr-x 1 root admin 123 Feb 20 11:14 pydoc3.2* -rwxrwxr-x 2 root admin 25624 Feb 20 11:14 python3* lrwxr-xr-x 1 root admin 12 Apr 28 15:51 python3-32@ -> python3.2-32 lrwxr-xr-x 1 root admin 16 Apr 28 15:51 python3-config@ -&gt...
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Creating PHP class instance with a string

...ther cool stuff you can do in php are: Variable variables: $personCount = 123; $varname = 'personCount'; echo $$varname; // echo's 123 And variable functions & methods. $func = 'my_function'; $func('param1'); // calls my_function('param1'); $method = 'doStuff'; $object = new MyClass(); $obj...
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Differences between unique_ptr and shared_ptr [duplicate]

...ou pass it by value if you cannot copy it? – splinter123 Jun 3 '16 at 22:00 11 @splinter123: By m...
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Any reason why scala does not explicitly support dependent types?

... | } sigma: java.lang.Object with Sigma{val bar: this.foo.Bar} = $anon$1@e3fabd8 and in fact, this is a crucial part of the encoding of dependent method types which is needed to escape from the 'Bakery of Doom' in Scala prior to 2.10 (or earlier via the experimental -Ydependent-method types Scal...
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App Inventor 2 构建纯血鸿蒙 HarmonyOS App · App Inventor 2 中文网

...XT 填写应用名称和包名(Bundle ID/包名,格式建议:cn.fun123.你的项目名) 3.2 申请签名证书 HarmonyOS NEXT 有两类证书需要了解: (1)调试证书(Debug证书) 用途:开发测试阶段使用 来源...
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Clearing purchases from iOS in-app purchase sandbox for a test user

...t you don't really have to verify your test user email. you can simply put 123@123.com with specify password(that you are still going to use the password in sandbox mode) and it still work. I just tested last night. – sooon May 1 '14 at 12:24 ...
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Typedef function pointer?

... { return u*v; } t_somefunc afunc = &product; ... int x2 = (*afunc)(123, 456); // call product() to calculate 123*456 share | improve this answer | follow ...
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JavaScript equivalent of jQuery's extend method

...42, prop3: true, prop4: 20.16, }; const obj2 = { prop4: 77.123, propNew1: 'newVal1', propNew2: 71, }; assert.deepEqual(utils.extend(obj1, obj2), { prop1: 'val1', prop2: 42, prop3: true, prop4: 77.123, propNew1: 'newVal1', propNew2: 71, }); }); i...
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Nginx serves .php files as downloads, instead of executing them

...some .php file it's just downloading it... for example... http://5.101.99.123/info.php it's working but... If I go to the main http://5.101.99.123 it's downloading my index.php :/ ...