Question

What will be displayed in the alert box at the end of script execution? var y = 0; for (x = 0; x <= 5; x++, y = y + 50) { y = y + 10; } alert("The value of y is :" + y);

Answer 1

The value of y is 360 .

EXPLANATION:  

The given code is a for loop which will begin with variable x=0 and loop will execute until x<=5.  

for (x = 0; x <= 5; x++, y = y + 50)  

{ y = y + 10; }

Initially x=0, y=0, enters loop, first time, y=50,x=1

Then y=50+10=60. Now loop will start and at each step x is incremented by 1 and y is incremented two times (y=y+50 and y=y+10)

X=1,y= 60+50=110

Y=110+10=120

X=2, y= 120+50=170

Y=170+10=180

X=3,y=180+50=230

Y=230+10=240

X=4, y= 240+50=290

Y=290+10=300

X=5, y=300+50=350

Y=350+10=360