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Format JavaScript date as yyyy-mm-dd
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Reformatting a date string should not depend on successful parsing of non-standard strings by the built-in parser. Given the OP format, it can be reformatted in less code without using a Date at all.
– RobG
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Modifying a query string without reloading the page
...am creating a photo gallery, and would like to be able to change the query string and title when the photos are browsed.
5 ...
What's the (hidden) cost of Scala's lazy val?
...he following Java code:
class LazyTest {
public int bitmap$0;
private String msg;
public String msg() {
if ((bitmap$0 & 1) == 0) {
synchronized (this) {
if ((bitmap$0 & 1) == 0) {
synchronized (this) {
msg = "Lazy";
...
How to check if a variable is set in Bash?
... expansion which evaluates to nothing if var is unset, and substitutes the string x otherwise.
Quotes Digression
Quotes can be omitted (so we can say ${var+x} instead of "${var+x}") because this syntax & usage guarantees this will only expand to something that does not require quotes (since it...
Drop all tables whose names begin with a certain string
How can I drop all tables whose names begin with a given string?
14 Answers
14
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parseInt vs unary plus, when to use which?
...lete set of cases
Well, here are a few differences I know of:
An empty string "" evaluates to a 0, while parseInt evaluates it to NaN. IMO, a blank string should be a NaN.
+'' === 0; //true
isNaN(parseInt('',10)); //true
The unary + acts more like parseFloat since it also acce...
How to output only captured groups with sed?
... what you don't want to be output as well as specifying what you do want.
string='This is a sample 123 text and some 987 numbers'
echo "$string" | sed -rn 's/[^[:digit:]]*([[:digit:]]+)[^[:digit:]]+([[:digit:]]+)[^[:digit:]]*/\1 \2/p'
This says:
don't default to printing each line (-n)
exclude ...
How to pass parameters to a partial view in ASP.NET MVC?
...N):
public static void RenderPartial(
this HtmlHelper htmlHelper,
string partialViewName,
Object model
)
so:
@{Html.RenderPartial(
"FullName",
new { firstName = model.FirstName, lastName = model.LastName});
}
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Deciding between HttpClient and WebClient
... result = responseTask.Result;
var readTask = result.Content.ReadAsStringAsync().Result;
}
private void CallGetHttpClient()
{
var httpClient = new HttpClient();
httpClient.BaseAddress = new Uri("https://localhost:44354/api/test/");
var responseTask = http...
Why do we need boxing and unboxing in C#?
...off without implied boxing conversions. Casting a value type like List<string>.Enumerator to IEnumerator<string> yields an object which mostly behaves like a class type, but with a broken Equals method. A better way to cast List<string>.Enumerator to IEnumerator<string> wou...