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How do you make sure email you send programmatically is not automatically marked as spam?
...st the email-address (e.g. "John Smith" <john@blacksmiths-international.com> ).
Monitor your abuse accounts, such as abuse@yourdomain.com and postmaster@yourdomain.com. That means - make sure that these accounts exist, read what's sent to them, and act on complaints.
Finally, make it really ...
Understanding the Rails Authenticity Token
...m. When the user submits the form, Rails looks for the authenticity_token, compares it to the one stored in the session, and if they match the request is allowed to continue.
Why it happens
Since the authenticity token is stored in the session, the client cannot know its value. This prevents peopl...
HTML5 Local storage vs. Session storage
...there's a broader discussion that you may find helpful here: stackoverflow.com/questions/19867599/…
– Ed Sykes
Apr 27 '14 at 11:51
13
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Android Studio could not find any version that matches com.android.support:appcompat-v7:+
...oid Studio fails with this error: could not find any version that matches com.android.support:appcompat-v7:+
10 Answers
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Sort a Map by values
...iendly version:
public class MapUtil {
public static <K, V extends Comparable<? super V>> Map<K, V> sortByValue(Map<K, V> map) {
List<Entry<K, V>> list = new ArrayList<>(map.entrySet());
list.sort(Entry.comparingByValue());
Map&...
Update Eclipse with Android development tools v. 23
...ftware...
For "Work with", select the Android source https://dl-ssl.google.com/android/eclipse
Tick ADT v23.0 for installation, then click "Next"
Eclipse will show "Install Remediation Page" since there is conflict with previous version. (If it does not, see below.) Select "Update my installation t...
How to Configure SSL for Amazon S3 bucket
...
You can access your files via SSL like this:
https://s3.amazonaws.com/bucket_name/images/logo.gif
If you use a custom domain for your bucket, you can use S3 and CloudFront together with your own SSL certificate (or generate a free one via Amazon Certificate Manager): http://aws.amazon.com...
Page redirect after certain time PHP
...ther by normal HTML tags, blank lines in a file, or from PHP. It is a very common error to read code with include, or require, functions, or another file access function, and have spaces or empty lines that are output before header() is called. The same problem exists when using a single PHP/HTML fi...
Easy interview question got harder: given numbers 1..100, find the missing number(s) given exactly k
...1k + a2k + ... + akk = bk
Using Newton's identities, knowing bi allows to compute
c1 = a1 + a2 + ... ak
c2 = a1a2 + a1a3 + ... + ak-1ak
...
ck = a1a2 ... ak
If you expand the polynomial (x-a1)...(x-ak) the coefficients will be exactly c1, ..., ck - see Viète's formulas. Since every polynomial...
Syntax highlighting for Jade in Sublime Text 2?
...syntax definition files. There is a Jade Textmate bundle at https://github.com/miksago/jade-tmbundle.
Install by creating a new folder in your Sublime Text "Packages" folder, call the new folder Jade, then curl -O https://raw.github.com/miksago/jade-tmbundle/master/Syntaxes/Jade.tmLanguage or othe...