What is the scope of variables in javascript? Do they have the same scope inside as opposed to outside a function? Or does it even matter? Also, where are the variables stored if they are defined globally?...
What is the difference between using call and apply to invoke a function? var func = function() { alert('hello!'); }; func.apply(); vs func.call(); Are there performance differences between the two aforementioned methods? When is it b...
We have two different way for doing function expression in JavaScript: Named function expression (NFE): var boo = function boo () { alert(1); }; Anonymous function expression: var boo = function () { alert(1); }; And both of them can be...
I have a function callWithMagic which takes a callback function as a parameter and calls it with one argument. const callWithMagic = callback => { const magic = getMagic(); callback(magic); }; I also have a function processMagic which tak...
I recently updated jQuery from 1.8 to 2.1. I suddenly discovered that the .live() stops working. I get the error TypeError: $(...).live is not a function. Is there any method I can use in place of .live()?...
What is the simplest/cleanest way to implement singleton pattern in JavaScript?...
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How do I pass a function as a parameter without the function executing in the "parent" function or using eval()? (Since I've read that it's insecure.) I have this: addContact(entityId, refreshContactList()); It works, but the pr...
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