This question already has answers here:
Safe evaluation of arithmetic expressions in Javascript
(5 answers)
Evaluating a string as a mathematical expression in JavaScript
(26 answers)
How to code a calculator in javascript without eval
(1 answer)
Eval alternative
(4 answers)
What's an alternative to using eval() in this situation? Is there an alternative? [duplicate]
(1 answer)
Closed 13 hours ago.
I found it very hard to program a calculator that is similar to a phone calculator.
Yes. using eval() and Function () constructor is easy..
But I think it's not a good practice.
Is there any other way? Maybe in functional approach of programming.
I'm searching for answers,maybe methods on how to really program a calculator in JavaScript.
Related
This question already has answers here:
How to find JS Memory Leaks?
(7 answers)
How to get the size of a JavaScript object?
(22 answers)
Closed 3 months ago.
I am working on Frontend React and Javascript. I need to know, if there is a way to get the memory used by a javascript variable mostly for objects and non primitive values. I checked chrome dev tool, but couldn't find any option to get memory being used by a variable or constant.
No you can't. JavaScript hides all that from you.
This question already has answers here:
Where can I find javascript native functions source code? [duplicate]
(3 answers)
How to get native javascript functions source code?
(4 answers)
Closed 2 years ago.
Whenever I try to look at JavaScript method definitions like Math.max() for example, I'll usually end up in a .d.ts file and I don't know where to go from there to view the actual method implementation.
Is there a way to inspect the source inside the JS v8 engine?
This question already has answers here:
Why is javascript the only client side scripting language implemented in browsers? [closed]
(3 answers)
Closed 7 years ago.
Every programming language has many alternatives, however, I could not find any alternative to javascript for accessing the DOM API? Why is this the case?
Thanks.
You have alternatives like Dart, LiveScript, Typescript, Babel and Coffeescript, yet these will be compiled/translated to native Javascript. The reason there is no real alternative is the fact that it is the only standard that is being implemented by all major browser "companies".
This question already has answers here:
Javascript parser generator [closed]
(2 answers)
Closed 9 years ago.
I am interested in writing a program using Javascript. This program will parse a custom scripting language. I'm looking for a list of parser generators to evaluate that target Javascript.
These answers were stolen from Javascript parser generator. It would also be nice to have a list of the main features of each, or at least what type of grammar they take.
Jison
PEG.js
ANTLR 3
JS/CC
Waxeye
This question already has answers here:
How can implement overloading in JavaScript/jQuery?
(7 answers)
Closed 8 years ago.
I would like to understand if JavaScript really support Polymorphism ? With function arguments function overloading appears ok but function overriding in classical OO using inheritance ? Is it also supported by JavaScript
Any input pointers would be helpful.
JavaScript is an object oriented language, but not through classical OO. It supports it through prototyping. I would do some research of Java Script and prototyping - Start there