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How can I check if a value is a json object?
My server side code returns a value which is a json object on success and a string 'false' on failure. Now how can I check whether the returned value is a json object?
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Access Container View Controller from Parent iOS
...s the child view controller (and its view and subviews). Give the segue an identifier (such as alertview_embed), using the Attributes inspector in Storyboard. Then have the parent view controller (the one housing the container view) implement a method like this:
- (void) prepareForSegue:(UIStoryboa...
How do I use jQuery's form.serialize but exclude empty fields
...]").serialize() // does the job!
Obviously #myForm gets the element with id "myForm" but what was less obvious to me at first was that the space character is needed between #myForm and :input as it is the descendant operator.
:input matches all input, textarea, select and button elements.
[value...
How to fix the datetime2 out-of-range conversion error using DbContext and SetInitializer?
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I did that too ^. Added a custom date field to the asp.net identity ApplicationUser object then forgot to initialize it to something that made sense. : (
– Mike Devenney
Nov 16 '16 at 19:...
System.currentTimeMillis() vs. new Date() vs. Calendar.getInstance().getTime()
...nd, is relatively slow and very complex, since it has to deal with the considerably complexity and all the oddities that are inherent to dates and times (leap years, daylight savings, timezones, etc.).
It's generally a good idea to deal only with long timestamps or Date objects within your applicat...
Xcode 4: How do you view the console?
...ethod for the previous version of XCode does not work. Does anyone have an idea of how to accomplish this?
8 Answers
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How to make a vertical line in HTML
...xt, and use CSS to style it:
.verticalLine {
border-left: thick solid #ff0000;
}
<div class="verticalLine">
some other content
</div>
share
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improve this answer
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Preloading images with JavaScript
...sked. If you think the answer is wrong, or insufficiently supported with evidence, then downvote it.
– Cody Gray♦
Mar 20 '19 at 7:29
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Node.js check if path is file or directory
....isBlockDevice()
stats.isCharacterDevice()
stats.isSymbolicLink() (only valid with fs.lstat())
stats.isFIFO()
stats.isSocket()
NOTE:
The above solution will throw an Error if; for ex, the file or directory doesn't exist.
If you want a true or false approach, try fs.existsSync(dirPath) && f...
bootstrap button shows blue outline when clicked
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May be your properties are getting overridden.
Try attaching !important to your code along with the :active .
.btn:focus,.btn:active {
outline: none !important;
box-shadow: none;
}
Also add box-shadow because otherwise you will still see the shadow around b...