javascript closure interview question

reported, func cannot be called normally, indicating no availability. II, III, and IV are variables declared using var. Function declarations in JS will also be upgraded, but this "variable" is special, it is a function type (can be used as a function, method, or constructor ). Its name (identifier) is also promoted to the top of the current scope. 5. The function declaration name will also be upgraded to the top of the current scope function test() { alert(f1); // function f1(); // "called"

reported, func cannot be called normally, indicating no availability. II, III, and IV are variables declared using var. function declarations in JS will also be upgraded, but this "variable" is special, it is a function type (can be used as a function, method, or constructor ). Its name (identifier) is also promoted to the top of the current scope. 5. the function declaration name will also be upgraded to the top of the current scope function test() { alert(f1); // function f1(); // "called"

There is a JavaScript face question. f = function () {return true ;}; g = function () {return false function () { if (g () [] = =! = function () {return false ;}; function g () {return true ;} }}); Console.info (f ()); Look first two linesvar function return true ; }; var function return false; };These two lines define two variables, not function definitions, and the v

I went to a company for an interview (the company name is not mentioned, and I may need to use this set of questions). I made a set of questions 30 minutes ago, one of which was like this:You need to write a function in JavaScript to return the corresponding object in the following URL string.For example:If the input string a = '? Name = zhiyelee blog = www.tsnrose.com ';B = {'name': 'zhiyelee ', 'blog': '

Spit The Trough: "Today actually I wrestling, write a thing good!" The pen of the hand turns a half day .... Finally, give yourself some room! Look at them. Hotel Management system, call center system and the like .... It's a dead end to yourself! Feel the end of the feeling!!! We are programmers so I think it's more flexible to HoHo ... " Today I just want to write an article about JavaScript arrays.I used to think I had mastered the array completel