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Download a file from NodeJS Server using Express
... filePath = "/my/file/path/..."; // Or format the path using the `id` rest param
var fileName = "report.pdf"; // The default name the browser will use
res.download(filePath, fileName);
});
Read more about res.download()
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Why can templates only be implemented in the header file?
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template<typename T>
struct Foo
{
T bar;
void doSomething(T param) {/* do stuff using T */}
};
// somewhere in a .cpp
Foo<int> f;
When reading this line, the compiler will create a new class (let's call it FooInt), which is equivalent to the following:
struct FooInt
{
i...
How to download image using requests
...ader is the way to go here; use cgi.parse_header() to parse it and get the parameters; params = cgi.parse_header(r2.headers['content-disposition'])[1] then params['filename'].
– Martijn Pieters♦
Jan 29 '15 at 10:41
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Fastest way to flatten / un-flatten nested JSON objects
..., {f: 1}]}}]})
* // return {a: 1}
* flatten({a: 1, b: [], c: {}})
*
* @param obj item to be flattened
* @param {Array.string} [prefix=[]] chain of prefix joined with a dot and prepended to key
* @param {Object} [current={}] result of flatten during the recursion
*
* @see https://docs.mongodb...
Django set default form values
...sed to the actual form? In the actual form model, do we have to write as a parameter/argument?
– mgPePe
May 4 '11 at 12:03
2
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ThreadStart with parameters
How do you start a thread with parameters in C#?
16 Answers
16
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How to access the GET parameters after “?” in Express?
I know how to get the params for queries like this:
8 Answers
8
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?: operator (the 'Elvis operator') in PHP
...reful with arrays. We must write a checking variable after ?, because:
$params = ['param1' => 'value1',
'param2' => 'value2',
'param3' => 'value3',];
$param1 = isset($params['param1'])?:null;
$param2 = !empty($params['param2'])?:null;
$param3 = $params['p...
req.query and req.param in ExpressJS
...r?name=tom&age=55 - req.query would yield {name:"tom", age: "55"}
req.params will return parameters in the matched route.
If your route is /user/:id and you make a request to /user/5 - req.params would yield {id: "5"}
req.param is a function that peels parameters out of the request. All of thi...
How to do 3 table JOIN in UPDATE query?
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For PostgreSQL example:
UPDATE TableA AS a
SET param_from_table_a=FALSE -- param FROM TableA
FROM TableB AS b
WHERE b.id=a.param_id AND a.amount <> 0;
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