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Android: How can I validate EditText input?
I need to do form input validation on a series of EditTexts. I'm using OnFocusChangeListeners to trigger the validation after the user types into each one, but this doesn't behave as desired for the last EditText.
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JavaScript moving element in the DOM
...y, you'll need to use different selectors since the divs will retain their ids as they are moved around.
$(function() {
setInterval( function() {
$('div:first').insertAfter($('div').eq(2));
$('div').eq(1).insertBefore('div:first');
}, 3000 );
});
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Why does += behave unexpectedly on lists?
... immutable types, which might seem a strange design decision until you consider that otherwise you couldn't use += on immutable types like numbers!
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MongoDB: Is it possible to make a case-insensitive query?
...ance, I have a User table that has a username which is mixed case, but the id is an uppercase copy of the username. This ensures case-sensitive duplication is impossible (having both "Foo" and "foo" will not be allowed), and I can search by id = username.toUpperCase() to get a case-insensitive sear...
Django “login() takes exactly 1 argument (2 given)” error
I'm trying to store the user's ID in the session using django.contrib.auth.login . But it is not working not as expected.
3...
Valid values for android:fontFamily and what they map to?
In the answer to this question the user lists values for android:fontFamily and 12 variants (see below). Where do these values come from? The documentation for android:fontFamily does not list this information in any place (I checked here , and here ). The strings are listed in the Android ...
Design RESTful query API with a long list of query parameters [closed]
...he
entity enclosed in the request as a new subordinate of the resource
identified by the Request-URI in the Request-Line. POST is designed to
allow a uniform method to cover the following functions:
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Providing a block of data, such as the result of submitting a form, to a data-han...
Media Player called in state 0, error (-38,0)
...Source(url);
mp.setOnPreparedListener(this);
mp.prepareAsync();
public void onPrepared(MediaPlayer player) {
player.start();
}
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jQuery SVG, why can't I addClass?
...if you don't want to depend on jQuery:
var element = document.getElementById("item");
// Instead of .addClass("newclass")
element.setAttribute("class", "oldclass newclass");
// Instead of .removeClass("newclass")
element.setAttribute("class", "oldclass");
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Margin on child element moves parent element
...You can also add:
.parent { overflow: auto; }
or:
.parent { overflow: hidden; }
This prevents the margins to collapse. Border and padding do the same.
Hence, you can also use the following to prevent a top-margin collapse:
.parent {
padding-top: 1px;
margin-top: -1px;
}
Update by ...