大约有 7,549 项符合查询结果（耗时：0.0211秒） [XML]
How to use ternary operator in razor (specifically on HTML attributes)?
With the WebForms view engine, I'll commonly use the ternary operator for very simple conditionals, especially within HTML attributes. For example:
...
Automatic counter in Ruby for each?
...to each personally anyway. Partly because its easy to transition to other forms when you hits the limit of the for syntax.
share
|
improve this answer
|
follow
...
What's “this” in JavaScript onclick?
...pt:func(this)">here</a>
You should use the onclick="func(this)" form in preference to this though. Also note that in my example above using the javascript: pseudo-protocol "this" will refer to the window object rather than the <a> element.
...
Refresh a page using PHP
...e, especially if you have images on the page. If you only need to update information on the screen, like stock prices, but not use that information in a form or from javascript, perhaps use an iframe tag pointing to a page with just the information being updated, and with a delay appropriate to how ...
Insert space before capital letters
...regex, you can use the following code from Javascript camelCase to Regular Form
"thisStringIsGood"
// insert a space before all caps
.replace(/([A-Z])/g, ' $1')
// uppercase the first character
.replace(/^./, function(str){ return str.toUpperCase(); })
...
Understanding REST: Verbs, error codes, and authentication
...retrying this request. For example, "Resource not found" (HTTP 404) or "Malformed Request" (HTTP 400) errors would fall in this category.
Point 4: How to do authentication
As pointed out in point 1, instead of authenticating a user, you may want to think about creating a session. You will be ret...
How can I trim beginning and ending double quotes from a string?
... I'm not sure how that's a problem considering the question in its current form.
– BalusC
May 16 '15 at 17:40
8
...
Adding minutes to date time in PHP
...t;add(new DateInterval('PT' . $minutes_to_add . 'M'));
$stamp = $time->format('Y-m-d H:i');
The ISO 8601 standard for duration is a string in the form of P{y}Y{m1}M{d}DT{h}H{m2}M{s}S where the {*} parts are replaced by a number value indicating how long the duration is.
For example, P1Y2DT5S ...
How to add a primary key to a MySQL table?
... will fail.
To add a primary key constraint to an existing column use the form:
ALTER TABLE `goods`
MODIFY COLUMN `id` INT(10) UNSIGNED PRIMARY KEY AUTO_INCREMENT;
share
|
improve this answer
...
How to save picture to iPhone photo library?
... thing to remember: If you use a callback, make sure that your selector conforms to the following form:
- (void) image: (UIImage *) image didFinishSavingWithError: (NSError *) error contextInfo: (void *) contextInfo;
Otherwise, you'll crash with an error such as the following:
[NSInvocation setA...