大约有 30,000 项符合查询结果（耗时：0.0390秒） [XML]
How to have a default option in Angular.js select box
...was not available yet at the time ng-init ran: I got the value via an ajax call and at that moment the ng-init was already finished. In the end I used a watcher on that value and in that function I did the same as I did in ng-init. That worked.
– maurits
Sep 5 ...
What's the difference between :: (double colon) and -> (arrow) in PHP?
...lf refers to the scope of the class where it's used; static refers to the "called scope" (see late static bindings).
The rule is that a call with :: is an instance call if and only if:
the target method is not declared as static and
there is a compatible object context at the time of the call, me...
Select all DIV text with single mouse click
...
UPDATE 2017:
To select the node's contents call:
window.getSelection().selectAllChildren(
document.getElementById(id)
);
This works on all modern browsers including IE9+ (in standards mode).
Runnable Example:
function select(id) {
window.getSelection()...
How to clear a chart from a canvas so that hover events cannot be triggered?
...
.destroy() should work fine. If it does't, after calling .destroy() to draw new chart, use setTimeout()
– Sumeet Kale
Nov 2 '18 at 12:01
...
PHP Pass variable to next page
... one page to another, hence regName and regValue:
Create your first page, call it set_reg.php:
<?php
session_start();
$_SESSION['regName'] = $regValue;
?>
<form method="get" action="get_reg.php">
<input type="text" name="regName" value="">
<input type="submit">
...
Can you resolve an angularjs promise before you return it?
...d to work within the context of what was originally asked (i.e. a function call to service) and actually on site.
Inside the service...
function getSomething(id) {
// There will always be a promise so always declare it.
var deferred = $q.defer();
if (Cache[id]) {
// Resolve the...
Should IBOutlets be strong or weak under ARC?
...st practice from Apple is for IBOutlets to be strong unless weak is specifically needed to avoid a retain cycle. As Johannes mentioned above, this was commented on in the "Implementing UI Designs in Interface Builder" session from WWDC 2015 where an Apple Engineer said:
And the last option I wan...
Getting Django admin url for an object
...
I had a similar issue where I would try to call reverse('admin_index') and was constantly getting django.core.urlresolvers.NoReverseMatch errors.
Turns out I had the old format admin urls in my urls.py file.
I had this in my urlpatterns:
(r'^admin/(.*)', admin.site...
What exactly is a C pointer if not a memory address?
...ts, but since that's not a memory address it's not something we'd properly call a "pointer"). Your computer has addresses for its buckets of memory. Pointers store the value of an address (i.e. a pointer stores the value "42 Wallaby Way, Sydney", which is an address).
Edit: I want to expand on Alexe...
How to replace a hash key with another key
...sh: "k" is for "key", "v" is for "value", "x" is for "I don't know what to call it but I was trained as a mathematician so I call it x".
– mu is too short
Jun 2 '11 at 5:36
...