
What's the meaning of "=>" (a fat arrow formed from equal and …
Jun 20, 2017 · In javascript the => is the symbol of an arrow function expression. A arrow function expression does not have its own this binding and therefore cannot be used as a constructor …
What is "function*" in JavaScript? - Stack Overflow
Mar 8, 2012 · In this page I found a new JavaScript function type: // NOTE: "function*" is not supported yet in Firefox. // Remove the asterisk in order for this code to work in Firefox 13 function* fibonacci...
what does !function in Javascript mean? - Stack Overflow
Feb 14, 2012 · function() { }(); It's read as a function declaration (like function foo () {}), rather than a function expression. So adding the ! before it, or wrapping it in parentheses, forces the parser to …
What is the purpose of the dollar sign in JavaScript?
Mar 29, 2022 · Javascript does have types; and in any case, how is the dollar sign even related to that? It's just a character that happens to be a legal identifier in Javascript.
Define a function within another function in JavaScript
I created a jsperf to test nested vs. non-nested and function expressions vs. function declarations, and I was surprised to see that the nested test cases performed 20x faster than non-nested.
javascript - var functionName = function () {} vs ... - Stack Overflow
Dec 3, 2008 · JavaScript has first-class functions, that is, create a function and assign it to a variable just like you create a string or number and assign it to a variable.
JavaScript error: "is not a function" - Stack Overflow
For example, JavaScript objects have no map function, but JavaScript Array object do. Basically the object (all functions in js are also objects) does not exist where you think it does.
javascript - What does $ (function () {} ); do? - Stack Overflow
A function of that nature can be called at any time, anywhere. jQuery (a library built on Javascript) has built in functions that generally required the DOM to be fully rendered before being called.
javascript - What does the exclamation mark do before the function ...
Mar 15, 2023 · It does this to enable the developer to immediately invoke the function using the () syntax. ! will also apply itself (ie negation) to the result of invoking the function expression.
javascript - Pass a string parameter in an onclick function - Stack ...
I would like to pass a parameter (i.e. a string) to an Onclick function. For the moment, I do this: