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Now you finished! I just tell you how to use callPHP function. This is the JavaScript to call PHP: //Names of parameters are custom, they haven't to be equals of these of the PHP file. //These fake names are required to assign value to the parameters in PHP. //using an hash table. callPHP("add(num1, num2)", {.
Jun 7, 2011 · It's a little hard to google when all you have are symbols ;) The terms to use are "JavaScript conditional operator". If you see any more funny symbols in JavaScript, you should try looking up JavaScript's operators first: Mozilla Developer Center's list of operators. The one exception you're likely to encounter is the $ symbol.
Jan 11, 2012 · Nested functions can be the basis for writing a modular group of related functions, kind of halfway to full object-oriented programming (static classes only). Here is an example of such a group of functions, in this case to convert a value to a JSON string or a JSON string to a value. Notice how the inner functions are grouped into an Object ...
Jul 9, 2010 · @CiY3 They are, via MDN: "In JavaScript, functions are first-class objects, because they can have properties and methods just like any other object. What distinguishes them from other objects is that functions can be called. In brief, they are Function objects." –
Jul 23, 2014 · As others have stated, regular (traditional) functions use this from the object that called the function, (e.g. a button that was clicked). Instead, arrow functions use this from the object that defines the function. Consider two almost identical functions: regular = function() { ' Identical Part Here; } arrow = => { ' Identical Part Here; }
Another thing, if I have a long script written by someone else, and I want to see all of the functions, I can do a quick search on "function" to find them. Or even better, I can write a quick JS RegEx to extract all of the functions. IMO, the "const" statement is just for data (not functions) that will NOT change. –
Jan 19, 2009 · 113. The correct answer is THERE IS NO OVERLOADING IN JAVASCRIPT. Checking / Switching inside the function is not OVERLOADING. The concept of overloading: In some programming languages, function overloading or method overloading is the ability to create multiple methods of the same name with different implementations.
Apr 8, 2011 · Interestingly, the Array methods in Javascript have been defined in such a way that they work on any object that has a length property. This includes the arguments object. Knowing this, and that the method concat returns a copy of the 'array' it's called on, we can easily convert the arguments object to a real array like this: var args = [].concat.call(arguments) .
Feb 3, 2014 · Guaranteeing order for synchronous functions is trivial - each function will execute completely in the order it was called. Think of the synchronous function as an atomic unit of work. The main JavaScript thread will execute it fully, in the order the statements appear in the code. But, throw in the asynchronous call, as in the following situation:
Note: In the first example the functions are named and have their own this-context. In the second example, the this-context from outside of the functions is used. In the third example, the functions are not named, but have their own this-context. So while all methods seem similar, they are a bit different.
