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Java 8 Lambda function that throws exception?
I know how to create a reference to a method that has a String parameter and returns an int , it's:
25 Answers
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Deleting DataFrame row in Pandas based on column value
... on multiple values of the column, you could use:
df[(df.line_race != 0) & (df.line_race != 10)]
To drop all rows with values 0 and 10 for line_race.
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Disable copy constructor
...provide no implementation:
private:
SymbolIndexer(const SymbolIndexer&);
Or in C++11, explicitly forbid it:
SymbolIndexer(const SymbolIndexer&) = delete;
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How can I print a circular structure in a JSON-like format?
...
Use JSON.stringify with a custom replacer. For example:
// Demo: Circular reference
var circ = {};
circ.circ = circ;
// Note: cache should not be re-used by repeated calls to JSON.stringify.
var cache = [];
JSON.stringify(circ, (key, value) => {
if (typeof value === ...
AWK: Access captured group from line pattern
...roups.
you might consider using something like :
perl -n -e'/test(\d+)/ && print $1'
the -n flag causes perl to loop over every line like awk does.
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Redirecting to a certain route based on condition
...th(); }, function(newValue, oldValue){
if ($scope.loggedIn == false && newValue != '/login'){
$location.path('/login');
}
});
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Set TextView text from html-formatted string resource in XML
...gs.xml, as long as you wrap it in
<![CDATA[ ...raw html... ]]>
Example:
<string name="nice_html">
<![CDATA[
<p>This is a html-formatted string with <b>bold</b> and <i>italic</i> text</p>
<p>This is another paragraph of the same string.&lt...
C++ equivalent of Java's toString?
...stream and your custom class:
class A {
public:
int i;
};
std::ostream& operator<<(std::ostream &strm, const A &a) {
return strm << "A(" << a.i << ")";
}
This way you can output instances of your class on streams:
A x = ...;
std::cout << x << ...
Don't Echo Out cURL
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Not the answer you're looking for? Browse other questions tagged php curl or ask your own question.
COM对象IWebBrowser2,IHTMLDocument2,IHTMLWindow2,IHTMLElement 相互获取 ...
...in;
CComQIPtr<IHTMLDocument2> spHtmlDoc;
spHtmlWin->get_document(&spHtmlDoc);复制代码
http://www.tsingfun.com/html/2015/dev_1111/968.html
此文中有通过htmlwin获取htmldoc的例子。