Zero Ok: D38: C36

/ 5

String.prototype.hello = function(x) {
return this.toString() + x;
};
console.log("solo".hello("learn"));

by Swapnil Srivastava

undefined

hello

sololearn

solohellolearn

var arr = [2, 4, 6];
var x = 1;
for (var j = 0; j < arr.length; j++) {
x += arr[j];
}
alert(x);

4

6

12

13

var a1 = [1];
var a2 = [2];
var a3 = a1.concat(a2.concat(a1));
alert(a3.length);

0

1

2

3

var str = "To locate where is 'locate'";
var po = str.indexOf("locate");
console.log(pos);

by saud siddiqui

undefined

str

3

3, 8

var x = new Function(
'b',
'let a = 1; return a + b'
);
console.log(x(4));

by Iaroslav Kalytiuk

undefined

NaN

Error

5

Submit

zeroOK/D38/C36.js