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When to use IMG vs. CSS background-image?
...TML IMG tag to display an image, as opposed to a CSS background-image , and vice-versa?
31 Answers
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Google Sheets API Setup · App Inventor 2 中文网
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Note: If you are only going to read from the Google Sheets document, and not
edit or write data to the document, you can skip the process of making a Service
Account. The only requirement is that the Google Sheets document is shared such
that anyone with the link can read the document.
Create...
Detect if an input has text in it using CSS — on a page I am visiting and do not control?
... input has text in it via CSS? I've tried using the :empty pseudo-class, and I've tried using [value=""] , neither of which worked. I can't seem to find a single solution to this.
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JSON left out Infinity and NaN; JSON status in ECMAScript?
Any idea why JSON left out NaN and +/- Infinity? It puts Javascript in the strange situation where objects that would otherwise be serializable, are not, if they contain NaN or +/- infinity values.
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How can I check if a URL exists via PHP?
...t Found') {
$exists = false;
}
else {
$exists = true;
}
From here and right below the above post, there's a curl solution:
function url_exists($url) {
return curl_init($url) !== false;
}
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php implode (101) with quotes
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@mcgrailm: Maybe, I suggest you make a benchmark and find out ;)
– Felix Kling
May 23 '11 at 20:23
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How can we prepend strings with StringBuilder?
...example is: varStringBuilder.insert(0, "someThing");
It works both for C# and Java
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Why Choose Struct Over Class?
...n many circumstances.
Structs are preferable if they are relatively small and copiable because copying is way safer than having multiple references to the same instance as happens with classes. This is especially important when passing around a variable to many classes and/or in a multithreaded env...
Django import error - no module named django.conf.urls.defaults
... party app, graphite. The issue has been fixed in graphite's master branch and version 0.9.14+.
In Django 1.8+ you can remove patterns from the import, and use a list of url()s instead.
from django.conf.urls import url, include
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Set cache-control for entire S3 bucket automatically (using bucket policies?)
I need to set cache-control headers for an entire s3 bucket, both existing and future files and was hoping to do it in a bucket policy.
I know I can edit the existing ones and I know how to specify them on put if I upload them myself but unfortunately the app that uploads them cannot set the header...