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Android: Go back to previous activity
...om another activity with startActivityForResult. In that case you can just call the finishActivity() function from your code and it'll take you back to the previous activity.
Keep track of the activity stack. Whenever you start a new activity with an intent you can specify an intent flag like FLAG_A...
When to use setAttribute vs .attribute= in JavaScript?
... attribute can't be set using the dot notation when creating the map dynamically for an image. It requires img.setAttribute('usemap', "#MapName"); Does your answer imply that usemap is therefore "non-standard"?
– mseifert
Feb 17 '16 at 5:22
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Change Placeholder Text using jQuery
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The plugin doesn't look very robust. If you call .placeholder() again, it creates a new Placeholder instance while events are still bound to the old one.
Looking at the code, it looks like you could do:
$("#serMemtb").attr("placeholder", "Type a name (Lastname, First...
How do I manage MongoDB connections in a Node.js web application?
...e = getInstance;
module.exports = MongoPool;
When you start the server, call initPool
require("mongo-pool").initPool();
Then in any other module you can do the following:
var MongoPool = require("mongo-pool");
MongoPool.getInstance(function (db){
// Query your MongoDB database.
});
This...
MySQL Insert into multiple tables? (Database normalization?)
...ll in MySQL, and the
LAST_INSERT_ID() in the second
statement will automatically be the
value of the autoincrement-column
that was inserted in the first
statement.
Unfortunately, when the second statement itself inserts rows in a table with an auto-increment column, the LAST_INSERT_ID() will be upd...
How to analyze a java thread dump?
...refore, the guardian flag is enough to protect this piece of code. This is called a flat monitor. However, if another thread wants to access some code that is locked, a genuine contention has occurred. The JVM must now create (or inflate) the monitor object to hold the second thread and arrange for ...
Send data from activity to fragment in Android
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Hmm I get a NullPointerException when calling getArguments().getString(key)
– Nima G
Aug 22 '13 at 6:16
9
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When and why I should use session_regenerate_id()?
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And what appends if the hacker do the 20th call ? Session ID is changed and he is the only one to own the session ;))
– fred727
Oct 6 '15 at 10:59
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How do servlets work? Instantiation, sessions, shared variables and multithreading
...in production). When a client (e.g. user with a web browser, or programmatically using URLConnection) sends an HTTP request, the servlet container creates new HttpServletRequest and HttpServletResponse objects and passes them through any defined Filter in the chain and, eventually, the Servlet insta...
Do AJAX requests retain PHP Session info?
...ests back to the same server do retain the same session info (assuming the called scripts issue a session_start() as per any other PHP script wanting access to session information).
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