Which of the following will invoke the browser's Add To Favorite dialog box?
Correct Answer: window.external.AddFavorite
Explanation:
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Which one shows the correct result for the code below? var arr = []; arr[0] = 'Jani'; arr[1] = 'Hege'; arr[2] = 'Stale'; arr[3] = 'Kai Jim'; arr[4] = 'Borge'; console.log(arr.join()); arr.splice(2, 0, 'Lene'); console.log(arr.join());
Which code snippet removes objects from an associative array?
Correct syntax for using the JavaScript exec() object method?
var p = {'p1': 'value1', 'p2': 'value2', 'p3': 'value3' }; Which produces the following output? output: p2 = value2
What's the output? public class Test15 { public static void main(String[] args) { VO a = new VO(2); VO b = new VO(3); swapONE(a, b); print(a, b); swapTWO(a, b); print(a, b); } private static void print(VO a, VO b) { System.out.print(a.toString() + b.toString()); } public static void swapONE(VO a, VO b) { VO tmp = a; a = b; b = tmp; } public static void swapTWO(VO a, VO b) { int tmp = a.x; a.x = b.x; b.x = tmp; } } class VO { public int x; public VO(int x) { this.x = x; } public String toString() { return String.valueOf(x); } }
function base(callback){ callback.call({msg:'hi'}) } function message(){ alert(this.msg) }; base(message); which is the value of alert?
What's the output? console.log({} + {});
What does Date() for example return ?
What the problem with the code ? function runner() { this.run = function() {} }; var runnerCollection = new Array(); for(var i = 0 ; i < 1000 ; i ++) { runnerCollection.push(new runner()); }
What's the output? and why? (function(){ var a = b = 3; })(); console.log('a defined? ' + (typeof a !== 'undefined')); console.log('b defined? ' + (typeof b !== 'undefined'));