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How do I clear only a few specific objects from the workspace?
...("^tmp", ls())])
thereby removing all objects whose name begins with the string "tmp".
Edit: Following Gsee's comment, making use of the pattern argument:
rm(list = ls(pattern = "^tmp"))
Edit: Answering Rafael comment, one way to retain only a subset of objects is to name the data you want to ...
Flask-SQLalchemy update a row's information
...:
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(80), unique=True)
data = db.Column(db.PickleType())
def __init__(self, name, data):
self.name = name
self.data = data
def __repr__(self):
return '<User %r>' % self.username
...
Assignment in an if statement
... me to do it in a while though when reading streams of data. For example:
string line;
while ((line = reader.ReadLine()) != null)
{
...
}
These days I normally prefer to use a wrapper which lets me use foreach (string line in ...) but I view the above as a pretty idiomatic pattern. It's usual...
Why does CSS not support negative padding?
... if more content overflows it, which is impossible if the content is in an extra abs-pos sibling. Negative padding would take the padding-collapsed element back to its size.
– sergio
Jul 19 '15 at 19:29
...
How to pass json POST data to Web API method as an object?
...bjectResult)
Use
contentType:"application/json"
You need to use JSON.stringify method to convert it to JSON string when you send it,
And the model binder will bind the json data to your class object.
The below code will work fine (tested)
$(function () {
var customer = {contact_name :"S...
Base 64 encode and decode example code
Does anyone know how to decode and encode a string in Base64 using the Base64. I am using the following code, but it's not working.
...
C++ mark as deprecated
...which has an improved interface")]]
void foo(int);
The message must be a string literal.
For further details, see “Marking as deprecated in C++14”.
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ZeroMQ的学习和研究（PHP代码实例） - C/C++ - 清泛网 - 专注C/C++及内核技术
...tal_temp = 0;
for ($update_nbr = 0; $update_nbr < 100; $update_nbr++) {
$string = $subscriber->recv ();
sscanf ($string, "%d %d %d", $zipcode, $temperature, $relhumidity);
$total_temp += $temperature;
}
printf ("Average temperature for zipcode '%s' was %dF\n",
$filter, (int) ($total_temp / $u...
未能从“const std::string”为“const std::_Tree &”推导 模板 参数 - C/...
未能从“const std::string”为“const std::_Tree &”推导 模板 参数参考：http: www tsingfun com html 2016 dev_0630 1876 html参考：https://www.tsingfun.com/it/cpp/1876.htmlstl 模板 参数
Tracking Google Analytics Page Views with AngularJS
...g .path() is better than .url() because you normally want to exclude query string params. See: Google Analytics Configuration Mistake #2: Query String Variables
– frodo2975
Feb 6 '15 at 15:36
...