jQuery .live() has been removed in version 1.9 onwards That means if you are upgrading from version 1.8 and earlier, you will notice things breaking if you do not follow the migration guide below. You must not simply replace .live() with .on()! Read before you start doing a search and replace: For quick/hot fixes on … Read more
If you don’t care if the code within the timer may take longer than your interval, use setInterval(): setInterval(function, delay) That fires the function passed in as first parameter over and over. A better approach is, to use setTimeout along with a self-executing anonymous function: (function(){ // do some stuff setTimeout(arguments.callee, 60000); })(); that guarantees, … Read more
Instead of breaking it down into individual fields, it’s easier to generate a random block of data and change the individual byte positions. You should also use a better random number generator than mt_rand(). According to RFC 4122 – Section 4.4, you need to change these fields: time_hi_and_version (bits 4-7 of 7th octet), clock_seq_hi_and_reserved (bit … Read more
Use ctags. Generate a tags file, and tell vim where it is using the :tags command. Then you can just jump to the function definition using Ctrl–] There are more tags tricks and tips in this question.
In Python, “privacy” depends on “consenting adults’” levels of agreement – you can’t force it (any more than you can in real life;-). A single leading underscore means you’re not supposed to access it “from the outside” — two leading underscores (w/o trailing underscores) carry the message even more forcefully… but, in the end, it … Read more
For thoroughness, I came across another solution which was part of the functionality introduced in version 1.4.3 of the jQuery click event handler. It allows you to pass a data map to the event object that automatically gets fed back to the event handler function by jQuery as the first parameter. The data map would … Read more
Deleting a function is a C++11 feature: The common idiom of “prohibiting copying” can now be expressed directly: class X { // … X& operator=(const X&) = delete; // Disallow copying X(const X&) = delete; }; […] The “delete” mechanism can be used for any function. For example, we can eliminate an undesired conversion like … Read more
In ES6, you can just use myFunction.name. Note: Beware that some JS minifiers might throw away function names, to compress better; you may need to tweak their settings to avoid that. In ES5, the best thing to do is: function functionName(fun) { var ret = fun.toString(); ret = ret.substr(‘function ‘.length); ret = ret.substr(0, ret.indexOf(‘(‘)); return … Read more
There’s no problem with what you’ve done, but you must remember the difference between function declarations and function expressions. A function declaration, that is: function doSomething () {} Is hoisted entirely to the top of the scope (and like let and const they are block scoped as well). This means that the following will work: … Read more
Exactly what it sounds like, assuming you’re used to the abbreviated way in which C and UNIX assigns words, it duplicates strings 🙂 Keeping in mind it’s actually not part of the current (C17) ISO C standard itself(a) (it’s a POSIX thing), it’s effectively doing the same as the following code: char *strdup(const char *src) … Read more