I think you meant /tmp , \tmp is something different altogether. Fifth: use warnings; using strict is good, but you should use warnings too. Sixth: Use names for variables that are explanatory, we know @ is an array @array is not more helpful. ALL TOGETHER use stric...
With Quartz you don't address individual pixels, but everything you draw is always antialiased. When you have a coordinate 1.0, 1.0 then this actually adds color to the 2x2 pixels at the coordinate origin. This is why you might get blurry lines if you draw at integer coordinates. On non...
Lets start with question 2 and an easy example. DISTINCT and GROUP BY are handled differently: the optimizer is able to completely eliminate a DISTINCT under certain circumstances, but it can not do the same with GROUP BY. Here is an example: createtablet4asselectrownum product_id...
if we stop iterating, the loop adding items to the channel will block—the goroutine is leaked. Instead, we must push the onus onto the user to signal the iteration is finished. It’s far less elegant and prone to leaks if not used correctly—so much for channels and goroutines. ...