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How to do a batch insert in MySQL
...a MySQL client and you should batch inserts together using the appropriate API.
E.g. in JDBC:
connection con.setAutoCommit(false);
PreparedStatement prepStmt = con.prepareStatement("UPDATE DEPT SET MGRNO=? WHERE DEPTNO=?");
prepStmt.setString(1,mgrnum1);
prepStmt.setString(2,d...
How to determine a user's IP address in node
...
In your request object there is a property called connection, which is a net.Socket object. The net.Socket object has a property remoteAddress, therefore you should be able to get the IP with this call:
request.connection.remoteAddress
See documentation for http and...
Best way to concatenate List of String objects? [duplicate]
...ring() implementation.
While the implementation is documented in the Java API and very unlikely to change, there's a chance it could. It's far more reliable to implement this yourself (loops, StringBuilders, recursion whatever you like better).
Sure this approach may seem "neater" or more "too swe...
What is a “bundle” in an Android application
...
Bundles are generally used for passing data between various Android activities. It depends on you what type of values you want to pass, but bundles can hold all types of values and pass them to the new activity.
You can use it like this:
In...
How do I convert a String to an int in Java?
...ht want to consider using Long::parseLong instead.
– Allison
Jan 17 '18 at 9:37
6
@Allison especi...
Chrome refuses to execute an AJAX script due to wrong MIME type
...
By adding a callback argument, you are telling jQuery that you want to make a request for JSONP using a script element instead of a request for JSON using XMLHttpRequest.
JSONP is not JSON. It is a JavaScript program.
Change your server...
How can I check if an element exists in the visible DOM?
...f the browser's selecting method, and checking it for a truthy value (generally).
For example, if my element had an id of "find-me", I could simply use...
var elementExists = document.getElementById("find-me");
This is specified to either return a reference to the element or null. If you must ha...
What is the difference between “Class.forName()” and “Class.forName().newInstance()”?
...demo = (Demo) clazz.newInstance();
}
}
As explained in its javadoc, calling Class.forName(String) returns the Class object associated with the class or interface with the given string name i.e. it returns test.Demo.class which is affected to the clazz variable of type Class.
Then, calling cla...
Looking for jQuery find(..) method that includes the current node
...it starts with the children of the current node. What is the best way to call a find operation that includes the current node in its matching algorithm? Looking through the docs nothing immediately jumps out at me.
...
How to force Selenium WebDriver to click on element which is not currently visible?
...ome cases even that is not practical.
In those cases, you may have to get all the elements that match your criteria and reference the right one by the index. It's dirty, but it works.
I'm using Selenium / Watir from Ruby on Rails app, so in my case the example would be:
browser = Watir::Browser.n...