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How do I dump an object's fields to the console?
When I'm running a simple Ruby script, what's the easiest way to dump an object's fields to the console?
9 Answers
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How can I know when an EditText loses focus?
...'ve lost focus to another control.
EditText txtEdit = (EditText) findViewById(R.id.edittxt);
txtEdit.setOnFocusChangeListener(new OnFocusChangeListener() {
@Override
public void onFocusChange(View v, boolean hasFocus) {
if (!hasFocus) {
// cod...
How to get a list of column names on Sqlite3 database?
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Just for super noobs like me wondering how or what people meant by
PRAGMA table_info('table_name')
You want to use use that as your prepare statement as shown below. Doing so selects a table that looks like this except is populated with values pertaining to your table.
cid n...
Check if object value exists within a Javascript array of objects and if not add a new object to arr
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I've assumed that ids are meant to be unique here. some is a great function for checking the existence of things in arrays:
const arr = [{ id: 1, username: 'fred' }, { id: 2, username: 'bill' }, { id: 3, username: 'ted' }];
function ad...
What is the difference between id and class in CSS, and when should I use them? [duplicate]
Here I gave an id to the div element and it's applying the relevant CSS for it.
15 Answers
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Javascript Equivalent to PHP Explode()
...Sometimes you have to explain everything. Eg, "Your problem is best solved by 'indexOf' ...but 'split' answers your question literally."
– Joel Mellon
Oct 18 '12 at 20:09
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What part of Hindley-Milner do you not understand?
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@Randomblue I made explicit the precedence of symbols by adding parentheses everywhere, e.g. (Γ,(x:τ))⊢(x:σ), see overleaf.com/read/ddmnkzjtnqbd#/61990222
– SnowOnion
May 14 '18 at 14:02
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Url.Action parameters?
... so your code will throw an exception):
<a href="<%: Url.Action("GetByList", "Listing", new { name = "John", contact = "calgary, vancouver" }) %>">
<span>People</span>
</a>
Assuming you are using the default routes this should generate the following markup:
<...
How to get current time with jQuery
... any arguments.
The $.now() method is a shorthand for the number returned by the expression (new Date).getTime().
http://api.jquery.com/jQuery.now/
It's simple to use Javascript:
var d = new Date();
var time = d.getHours() + ":" + d.getMinutes() + ":" + d.getSeconds();
console.log(time);
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Focusable EditText inside ListView
... premise is that there is some row in a ListView (whether it's generated by the adapter, or added as a header view) that contains an EditText widget and a Button . All I want to do is be able to use the jogball/arrows, to navigate the selector to individual items like normal, but when I get to...