to pass the event object: <p id=”p” onclick=”doSomething(event)”> to get the clicked child element (should be used with event parameter: function doSomething(e) { e = e || window.event; var target = e.target || e.srcElement; console.log(target); } to pass the element itself (DOMElement): <p id=”p” onclick=”doThing(this)”> see live example on jsFiddle. You can specify the name … Read more
Virtual functions can be inlined sometimes. An excerpt from the excellent C++ faq: “The only time an inline virtual call can be inlined is when the compiler knows the “exact class” of the object which is the target of the virtual function call. This can happen only when the compiler has an actual object rather … Read more
Avoiding the cost of a function call is only half the story. do: use inline instead of #define very small functions are good candidates for inline: faster code and smaller executables (more chances to stay in the code cache) the function is small and called very often don’t: large functions: leads to larger executables, which … Read more
Finally in .NET 4.5, the CLR allows one to hint/suggest1 method inlining using MethodImplOptions.AggressiveInlining value. It is also available in the Mono’s trunk (committed today). // The full attribute usage is in mscorlib.dll, // so should not need to include extra references using System.Runtime.CompilerServices; … [MethodImpl(MethodImplOptions.AggressiveInlining)] void MyMethod(…) 1. Previously “force” was used here. I’ll … Read more
Python does not have a trailing if statement. There are two kinds of if in Python: if statement: if condition: statement if condition: block if expression (introduced in Python 2.5) expression_if_true if condition else expression_if_false And note, that both print a and b = a are statements. Only the a part is an expression. So … Read more
Oh man, one of my pet peeves. inline is more like static or extern than a directive telling the compiler to inline your functions. extern, static, inline are linkage directives, used almost exclusively by the linker, not the compiler. It is said that inline hints to the compiler that you think the function should be … Read more
My suspect is of course the actual Base64 data. Otherwise it looks good to me. See this fiddle where a similar scheme is working. You may try specifying the character set. <div> <p>Taken from wikpedia</p> <img src=”data:image/png;base64, iVBORw0KGgoAAAANSUhEUgAAAAUA AAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO 9TXL0Y4OHwAAAABJRU5ErkJggg==” alt=”Red dot” /> </div> You can try this Base64 decoder to see if your Base64 … Read more