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How to compute the sum and average of elements in an array?
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var sum = 0;
for( var i = 0; i < elmt.length; i++ ){
    sum += parseInt( elmt[i], 10 ); //don't forget to add the base
}
var avg = sum/elmt.length;
document.write( "The sum of all the elements is: " + sum + " The average is: " + ...				
				
				
							Could not locate Gemfile
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        answered Jul 25 '10 at 16:40
    
    
        
    
    
        JoniJoni
        
            2,85733 gold badges2121 silver badges2222 bronze badges
        
    
            
        
    
    
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							Is it correct to use JavaScript Array.sort() method for shuffling?
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It's never been my favourite way of shuffling, partly because it is implementation-specific as y...				
				
				
							How to set a single, main title above all the subplots with Pyplot?
					...plotlib.pyplot as plt
import numpy as np
fig=plt.figure()
data=np.arange(900).reshape((30,30))
for i in range(1,5):
    ax=fig.add_subplot(2,2,i)        
    ax.imshow(data)
fig.suptitle('Main title') # or plt.suptitle('Main title')
plt.show()
    
    
        
            
            
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							Node.js + Nginx - What now?
					...ng like: 
# the IP(s) on which your node server is running. I chose port 3000.
upstream app_yourdomain {
    server 127.0.0.1:3000;
    keepalive 8;
}
# the nginx server instance
server {
    listen 80;
    listen [::]:80;
    server_name yourdomain.com www.yourdomain.com;
    access_log /var/log/...				
				
				
							Putting an if-elif-else statement on one line?
					...st likely violate PEP-8 where it is mandated that lines should not exceed 80 characters in length.
It's also against the Zen of Python: "Readability counts". (Type import this at the Python prompt to read the whole thing).
You can use a ternary expression in Python, but only for expressions, not f...				
				
				
							Equivalent of String.format in jQuery
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							Rails I18n validation deprecation warning
					I just updated to rails 4.0.2 and I'm getting this warning:
                    
                    
                        
                            
                                
                                        5 Answers
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							iOS 7 TableView like in Settings App on iPad
					...PathCreateMutable();
            CGRect bounds = CGRectInset(cell.bounds, 10, 0);
            BOOL addLine = NO;
            if (indexPath.row == 0 && indexPath.row == [tableView numberOfRowsInSection:indexPath.section]-1) {
                CGPathAddRoundedRect(pathRef, nil, bounds, cornerRa...				
				
				
							Difference between exit(0) and exit(1) in Python
					What's the difference between  exit(0)  and  exit(1)  in Python?
                    
                    
                        
                            
                                
                                        5 Answers
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