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What does $1 [QSA,L] mean in my .htaccess file?

..."/page.php?page=$1" [QSA] With the [QSA] flag, a request for /pages/123?one=two will be mapped to /page.php?page=123&one=two share | improve this answer | ...
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Why is it slower to iterate over a small string than a small list?

...rule out Tim Peter's 10-times-upvoted answer! >>> foo = iterable[123] >>> iterable[36] is foo True These are not new objects! But this is worth mentioning: indexing costs. The difference will likely be in the indexing, so remove the iteration and just index: >>> pytho...
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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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How to make connection to Postgres via Node.js

... single user name from id: db.one('SELECT name FROM users WHERE id = $1', [123]) .then(user => { console.log(user.name); // print user name; }) .catch(error => { console.log(error); // print the error; }); // alternative - new ES7 syntax with 'await': // await ...
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App Inventor 2开发简单计算器 - App Inventor 2 中文网 - 清泛IT论坛,有思想、有深度

...建点击数字过程按照计算器的使用习惯,如果要输入数字123,会依次点击三个数字键,但三个数字的排列要用程序来处理,这里存在两种情况:当后数=0时,即,当用户输入第一个数字时,让后数直接等于输入的数字;当用户接...
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Get nested JSON object with GSON using retrofit

...s":"OK", "reason":"some reason", "content" : { "foo": 123, "bar": "some value" } } You'd then have a Content POJO: class Content { public int foo; public String bar; } Then you write a deserializer: class MyDeserializer implements JsonDeserializer<Co...
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How do I get the current time only in JavaScript

... gvlasov 13.5k1717 gold badges5858 silver badges9898 bronze badges answered Feb 4 '15 at 16:16 Fernando GomesFernando Gomes 98...
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Flask-SQLAlchemy how to delete all rows in a single table

...e query. ex. #for specific value db.session.query(Model).filter(Model.id==123).delete() db.session.commit() Delete Single Record by Object record_obj = db.session.query(Model).filter(Model.id==123).first() db.session.delete(record_obj) db.session.commit() https://flask-sqlalchemy.palletsprojec...
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Using generic std::function objects with member functions in one class

...; // Call with late supplied 'this' MyClass myInst; callable(&myInst, 123); What would the storage type look like without auto? Something like this: std::_Mem_fn_wrap<void,void (__cdecl TestA::*)(int),TestA,int> callable You can also pass this function storage to a standard function ...
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grepping using the “|” alternative operator

...overflow.com/a/6775943/3933332 doesn't have? – Rizier123 Mar 1 '15 at 5:35 3 @Rizier123 -- look a...