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Why does Pycharm's inspector complain about “d = {}”?
...
This can be disabled in the Project Settings or Default Settings.
Navigate to Settings -> Inspections -> Python
Uncheck "Dictionary creation could be rewritten by dictionary literal"
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Groovy executing shell commands
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In case you also need to set Environment Variables to this process, make sure to wrap the command in shell. For example, running a Perforce command with env vars: envVars = ["P4PORT=p4server:2222", "P4USER=user", "P4PASSWD=pass", "P4CLIENT=p4workspac...
What are some uses of decltype(auto)?
...lay the return type deduction after the dust of template instantiation has settled.
Other uses
You can also use decltype(auto) in other contexts, e.g. the draft Standard N3936 also states
7.1.6.4 auto specifier [dcl.spec.auto]
1 The auto and decltype(auto) type-specifiers designate a placeh...
What do parentheses surrounding an object/function/class declaration mean? [duplicate]
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It is a self-executing anonymous function. The first set of parentheses contain the expressions to be executed, and the second set of parentheses executes those expressions.
It is a useful construct when trying to hide variables from the parent namespace. All the code within t...
How to read from stdin line by line in Node
...es.txt');
//var readStream = process.stdin;
readStream.pause();
readStream.setEncoding('utf8');
var buffer=[];
readStream.on('data', (chunk) => {
const newlines=/[\r\n]+/;
var lines=chunk.split(newlines)
if(lines.length==1)
{
buffer.push(lines[0]);
return;
} ...
What are valid values for the id attribute in HTML?
...ed } in your CSS (upper-case 'F'), that buggy browser would have failed to set the element's color to red. At the time of this edit, April 2015, I hope you aren't being asked to support Netscape 6. Consider this a historical footnote.
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How do I pass the this context to a function?
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Javascripts .call() and .apply() methods allow you to set the context for a function.
var myfunc = function(){
alert(this.name);
};
var obj_a = {
name: "FOO"
};
var obj_b = {
name: "BAR!!"
};
Now you can call:
myfunc.call(obj_a);
Which would alert FOO. The ...
Suppressing deprecated warnings in Xcode
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Try -Wno-deprecated-declarations, or its corresponding setting in Xcode, GCC_WARN_ABOUT_DEPRECATED_FUNCTIONS (pro tip: just type in "deprecated" in the build settings to find the specific setting for this warning).
Current versions of Xcode (e.g. Xcode 9.2):
Ancient version...
What does principal end of an association means in 1:1 relationship in Entity framework
...ublic class Boo
{
[Key, ForeignKey("Foo")]
public string BooId{get;set;}
public Foo Foo{get;set;}
}
Or fluent mapping
modelBuilder.Entity<Foo>()
.HasOptional(f => f.Boo)
.WithRequired(s => s.Foo);
...
Why does a RegExp with global flag give wrong results?
...);
result.push(re.test('Foo Bar'));
If you don't want to manually reset lastIndex to 0 after every test, just remove the g flag.
Here's the algorithm that the specs dictate (section 15.10.6.2):
RegExp.prototype.exec(string)
Performs
a regular expression match of string
against the regular ex...