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Could you explain STA and MTA?
...ndle their own synchronization. A common use of this is a UI component. So if another thread needs to interact with the object (such as pushing a button in a form) then the message is marshalled onto the STA thread. The windows forms message pumping system is an example of this.
If the COM object c...
Simplest way to check if key exists in object using CoffeeScript
In CoffeeScript, what is the simplest way to check if a key exists in an object?
3 Answers
...
Contains case insensitive
...ng in a lower case string. Then, use .indexOf() using ral instead of Ral.
if (referrer.toLowerCase().indexOf("ral") === -1) {
The same can also be achieved using a Regular Expression (especially useful when you want to test against dynamic patterns):
if (!/Ral/i.test(referrer)) {
// ^i = ...
how to check if object already exists in a list
...
It depends on the needs of the specific situation. For example, the dictionary approach would be quite good assuming:
The list is relatively stable (not a lot of inserts/deletions, which dictionaries are not optimized for)
The list is quite large (otherwise t...
mysql create user if not exists
...
In 5.7.6 and above, you should be able to use CREATE USER
CREATE USER IF NOT EXISTS 'user'@'localhost' IDENTIFIED BY 'password';
Note that the 5.7.6 method doesn't actually grant any permissions.
If you aren't using a version which has this capability (something below 5.7.6), you can do th...
How does Hadoop process records split across block boundaries?
...max.split.size and minSize is mapred.min.split.size.
Divide the file into different FileSplits based on the split size calculated above. What's important here is that each FileSplit is initialized with a start parameter corresponding to the offset in the input file. There is still no handling of the...
Are iframes considered 'bad practice'? [closed]
Somewhere along the line I picked up the notion that using iframes is 'bad practice'.
11 Answers
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How can I catch all the exceptions that will be thrown through reading and writing a file?
...
If you want, you can add throws clauses to your methods. Then you don't have to catch checked methods right away. That way, you can catch the exceptions later (perhaps at the same time as other exceptions).
The code looks ...
What is the best (idiomatic) way to check the type of a Python variable? [duplicate]
I need to know if a variable in Python is a string or a dict. Is there anything wrong with the following code?
10 Answers
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GoTo Next Iteration in For Loop in java
...t iteration upon invocation
For Example
for(int i= 0 ; i < 5; i++){
if(i==2){
continue;
}
System.out.print(i);
}
This will print
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