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What does Expression.Quote() do that Expression.Constant() can’t already do?
...) ex1.Compile();
var f1b = f1a(100);
Console.WriteLine(f1b(123));
The lambda has a nested lambda; the compiler generates the interior lambda as a delegate to a function closed over the state of the function generated for the outer lambda. We need consider this case no more.
Suppos...
printf with std::string?
...r example:
std::locale loc("");
std::cout.imbue(loc);
std::cout << 123456.78;
The nameless locale (the "") picks a locale based on the user's configuration. Therefore, on my machine (configured for US English) this prints out as 123,456.78. For somebody who has their computer configured fo...
Listening for variable changes in JavaScript
...c.innerHTML = c.innerHTML + '<br />' + t;
}
// Demo
var myVar = 123;
Object.defineProperty(this, 'varWatch', {
get: function () { return myVar; },
set: function (v) {
myVar = v;
print('Value changed! New value: ' + v);
}
});
print(varWatch);
varWatch = 456;
pri...
Round to at most 2 decimal places (only if necessary)
...
If the value is a text type:
parseFloat("123.456").toFixed(2);
If the value is a number:
var numb = 123.23454;
numb = numb.toFixed(2);
There is a downside that values like 1.5 will give "1.50" as the output. A fix suggested by @minitech:
var numb = 1.5;
numb = +nu...
An error occurred while validating. HRESULT = '8000000A'
...
123
Update for those who got this issue for VS2013 or VS2015 after upgrading a VS200X setup projec...
What's the best way to check if a String represents an integer in Java?
...they aren't bad performers.
public void RunTests()
{
String str = "1234567890";
long startTime = System.currentTimeMillis();
for(int i = 0; i < 100000; i++)
IsInt_ByException(str);
long endTime = System.currentTimeMillis();
System.out.print("ByException: ");
...
How to get evaluated attributes inside a custom directive
...32;
}
.
<div ng-controller="MyCtrl">
<input my-directive="123">
<input my-directive="1+1">
<input my-directive="'1+1'">
<input my-directive="aaa">
</div>
One thing you should notice here is that, if you want set the val...
Using str_replace so that it only acts on the first match?
...n preg_replace($from, $to, $content, 1);
}
echo str_replace_first('abc', '123', 'abcdef abcdef abcdef');
// outputs '123def abcdef abcdef'
The magic is in the optional fourth parameter [Limit]. From the documentation:
[Limit] - The maximum possible
replacements for each pattern in each
s...
How should I write tests for Forms in Django?
... response = self.client.post("/form-url/", data={ 'name': 'test123', 'category': 1, 'note': 'note123' }, content_type=django.test.client.MULTIPART_CONTENT) If any stuck with getting empty instance when saving the form, then check the requests sent from br...
How can I update NodeJS and NPM to the next versions?
...
123
npm update npm -g didn't work for me on windows - it completed without output but npm remained the same version (1.3.11 when the most rece...