overwrite

Basically what I am trying to do is change the definition of complex numbers so I can represent vectors in Scheme. I want to be able to write something like "i+j+k" without the quotes and not have the program go entirely crazy. I know complex numbers can be represented by something like "1+2i" so I was hoping a simple overwrite could accomplish this. I thought overwriting the complex? definition might work, but it seems to have no effect. I am unsure of where the code I need to affect even is. Any help would be amazing. Thanks. Are you aware that the Racket reader already supports complex

Is it possible to bind an onload event to each image, declaring it once? I tried, but can't manage to get it working... (this error is thrown: Uncaught TypeError: Illegal invocation ) HTMLImageElement.prototype.onload = function() { console.log(this, "loaded"); }; P.S: I also tried returning this , but doesn't seem to be the issue here... any suggestions / explanations on why my current code isn't working? You can't set a handler on the prototype, no. In fact, I'm not aware of any way to get a proactive notification for image load if you haven't hooked load on the specific image element, since

I am new to Python and working on a project that I could use some help on. So I am trying to modify an existing excel workbook in order to compare stock data. Luckily, there was a program online that retrieved all the data I need and I have successful been able to pull the data and write the data into a new excel file. However, the goal is to pull the data and put it into an existing excel file. Furthermore, I need to overwrite the cell values in the existing file. I believe xlwings is able to do this and I think my code is on the right track, but I ran into an unexpected error. The error I

In cygwin, the following code works fine $ cat junk bat bat bat $ cat junk | sort -k1,1 |tr 'b' 'z' > junk $ cat junk zat zat zat But in the linux shell(GNU/Linux), it seems that overwriting doesn't work [41] othershell: cat junk cat cat cat [42] othershell: cat junk |sort -k1,1 |tr 'c' 'z' zat zat zat [43] othershell: cat junk |sort -k1,1 |tr 'c' 'z' > junk [44] othershell: cat junk Both environments run BASH. I am asking this because sometimes after I do text manipulation, because of this caveat, I am forced to make the tmp file. But I know in Perl, you can give "i" flag to overwrite the

I'm having some problems runnning the following code. I got this: error C2668: 'pow' : ambiguous call to overloaded function. I've tried to manually cast the arguments to the appropiate type using static_cast, however I think I get some pointer errors?! The program should convert a number from base 16 to base 10. #define _CRT_SECURE_NO_WARNINGS #include <stdio.h> #include <stdlib.h> #include <conio.h> #include <string.h> #include <math.h> //base 16 to base 10 int convert(char *n){ int result = 0; for (int i = strlen(n) - 1; i >= 0; i--){ if (n[i] >= 'a') result += (n[i] - 'a' + 10)* pow(16,

Simple: I want to disable/overwrite alert() . Can I do this? More importantly, is it right to do this? What about strict mode? Yes, you can disable or overwrite alert() . No, it's not right to do it, except in some bizarre and limited situations. Disable: window.alert = function() { }; Override: window.alert = function(text) { /* do something */ }; Yes you can, it's your choice. You could also store the original 'alert': window.nativeAlert = window.alert; window.alert = function(val){console.log(val+' (alert disabled)');}; now the old alert is still usable: nativeAlert('something'); 来源： https:

I have a log file that has the following appender added to it : logger.addAppender(new FileAppender(new PatternLayout(),"log.txt")); the thing is, each time I'm running my application, additional logging information gets appended to the same log file. What can I do to overwrite the file each time ? Use RollingFileAppender. If you have an appender declared like so in a properties file: log4j.appender.LOGFILE=org.apache.log4j.FileAppender log4j.appender.LOGFILE.File=file.log log4j.appender.LOGFILE.layout=org.apache.log4j.PatternLayout log4j.appender.LOGFILE.layout.ConversionPattern=%d %-5p %c -

The code I've written is supposed to overwrite over the contents of the selected text file, but it's appending it. What am I doing wrong exactly? File fnew=new File("../playlist/"+existingPlaylist.getText()+".txt"); String source = textArea.getText(); System.out.println(source); FileWriter f2; try { f2 = new FileWriter(fnew,false); f2.write(source); /*for (int i=0; i<source.length();i++) { if(source.charAt(i)=='\n') f2.append(System.getProperty("line.separator")); f2.append(source.charAt(i)); }*/ f2.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); }

I have two Maven modules, A and B . A is a dependency of B . Both modules have a resource file named default.properties located in src/main/resources . I need to keep the filenames the same and the location of the file the same in both projects because both A and B are using code which expects the file to be named and located where it is. When building B , A 's default properties is in the final jar . I wish to have B 's properties when I build B . How can I do this? Ok, Maven Resources Plugin and Assembly plugin did not cut it, so I dug some more. It seems this is doable with Maven Shade