This question already has answers here:
Closed 11 years ago.
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What is the difference between a 'closure' and a 'lambda'?
Hello everyone!
I'm a JavaScript developer. I know what is closure and how it works in JavaScript.
But today I see a new noun "lambda". What is lambda? It appears to be relevant to closure in JavaScript. What's the difference between lambda and closure in JavaScript?
Thank you!
Refer to Wikipedia:
In mathematical logic and computer science, lambda calculus, also written as λ-calculus, is a formal system for function definition, function application and recursion.
Look at Motivation, under Informal description
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How do JavaScript closures work?
(86 answers)
Closed 2 years ago.
I have been learning javaScript lately but I got confused in understanding the concept of closures.How does JavaScript closures actually work ?
A closure gives you access to an outer function’s scope from an inner function
for more info you can follow this link-
http://sleeplessgeek.blogspot.com/2009/12/so-what-are-these-closure-thingys.html
This question already has answers here:
What does this.async() do in JavaScript
(3 answers)
Closed 3 years ago.
This might be a possible duplicate of this question What does this.async() do in JavaScript but that question is under a different circumstance and the accepted answer got negative vote, hence wrong or original question unaddressed. Also the most liked answer did not clarify it, the answerer also said so in his answer.
What is the actual use of this.async(); is JS? Is it part of the core JS language or a conventional function used by libraries? I couldn't find any documentation on this.
The this.async() is not standard (core) JS function
this.async();
If anybody else is wondering about this. I just found this link which kind of sums it up and details the use case.
https://github.com/sboudrias/run-async#readme
And Grunt also use this same technique to know that an async task has finished.
https://gruntjs.com/inside-tasks
This question already has answers here:
Is it possible to sandbox JavaScript running in the browser?
(15 answers)
Closed 3 years ago.
I'm aware similar questions have been asked before, but my use-case is a little different.
I'd like to create an educational app similar to LeetCode, CodeWars, etc. where users can type in their own functions to solve algorithms.
Right now, I'm focusing on JavaScript, so the code could be evaluated on client-side.
I want to know, what considerations should I take into account to use eval() and new Function() safely?
Or is there a better alternative?
Luckily you're not alone, and someone invented the wheel before you. You can check out NeilFraser/JS-Interpreter or sandbox.
There may be even better documented/implemented solutions that I'm not aware of, but it's a good start.
This question already has answers here:
What does "this" mean in jQuery? [duplicate]
(6 answers)
Closed 6 years ago.
Can any help how to use "this" inside a function for javascript, jquery, php. Because it is little confusing me how to use it. can we "this" inside iteration for loop. Please explain me with simple example.
Thanks you for time.
This is well documented in the official js documentation.
link
This article explains even better link
This question already has answers here:
What is a mixin and why is it useful?
(18 answers)
Closed 6 years ago.
I am reading Reactjs documentation and came across mixins,but i dont understand mixins clearly.What are mixins and what are they used for?
Here is a link that will explain the concept in more detail.
https://javascriptweblog.wordpress.com/2011/05/31/a-fresh-look-at-javascript-mixins/
"Mixins are a great compromise, allowing entire functional units to be borrowed and accessed with minimal syntax and they play very well with prototypes. They offer the descriptive prowess of hierarchical inheritance without the brain-cracking issues associated with multi-tiered, single-rooted ancestry."