string-concatenation

String concatenation on bash script doesn't work on comma "," character. A="Hello"; B=",World"; C=$A$B echo $C; It prints the output as Hello World Bash version is: GNU bash, version 4.1.2(1)-release (x86_64-redhat-linux-gnu) The same code seems to work in here The most likely explanation is that you have $IFS set to , The simplest way around this is to double-quote $C , in which case echo is passed the value unmodified : echo "$C" Also note that you don't need the semicolons to terminate your commands, given that each command is on its own line. To print the current value of $IFS in

I've read another similiar question on SO but there wasn't a clear answer at that question. I got some JavaScript objects that look like this: var moveJSON = { 'name' : move[0].innerHTML, 'info' : move[1].innerHTML, 'power' : move[2].innerHTML, 'accuracy' : move[3].innerHTML, 'type' : move[4].innerHTML, 'category' : move[5].innerHTML, 'pp_min' : move[6].innerHTML, 'pp_max' : move[7].innerHTML } I need to merge them into one object, that will be send to PHP via AJAX. But first: what's the best way to merge them into a single object (array)? This should work. var array = [] array.push(yourObject

EDIT 1 DISCLAIMER: I know that +++ is not really an operator but the + and ++ operators without a space. I also know that there's no reason to use this; this question is just out of curiosity. So, I'm interested to see if the space between + and ++var is required in Java. Here is my test code: int i = 0; System.out.println(i); i = i +++i; System.out.println(i); This prints out: 0 1 which works as I would expect, just as if there were a space between the first and second + . Then, I tried it with string concatenation: String s1 = "s " + ++i; System.out.println(s1); // String s2 = "s " +++i;

I know that in more recent Java versions string concatenation String test = one + "two"+ three; Will get optimized to use a StringBuilder . However will a new StringBuilder be generated each time it hits this line or will a single Thread Local StringBuilder be generated that is then used for all string concatenation? In other words can I improve on the performance for a frequently called method by creating my own thread local StringBuilder to re-use or will there be no significant gains by doing so? I can just write a test for this but I wonder if it might be compiler/JVM specific or something

I have an NSString and fail to apply the following statement: NSString *myString = @"some text"; [myString stringByAppendingFormat:@"some text = %d", 3]; no log or error, the string just doesn't get changed. I already tried with NSString (as documented) and NSMutableString. any clues most welcome. Paul Lynch I would suggest correcting to ( documentation ): NSString *myString = @"some text"; myString = [myString stringByAppendingFormat:@" = %d", 3]; From the docs: Returns a string made by appending to the receiver a string constructed from a given format string and the following arguments. It's

I've following PHP code: <?php $rebate_no = 2; echo "<table id='blacklistgrid_$rebate_no' class='table table-bordered table-hover table-striped blacklistgrid'> <tr id='reb$rebate_no_1'> <td> <div class='btn-group'> <select name='product_id_$rebate_no[1]' id='product_id_$rebate_no_1' class='form-control prod_list'> <option value='1'>Alabama</option> <option value='2'>Alaska</option> <option value='3'>Arizona</option> <option value='4'>Arkansas</option> <option value='5'>California</option> </select> </div> </td> </tr> </table>"; ?> In above code I'm having issues in concatenation of variable