Javascript syntax

Question

How do you say if (A == 0) OR (B == 0)?

Compared to what? Prolog? Turtle? Cheese-strings? Quantum Chromodynamics? — annakata
– annakata, Commented May 27, 2009 at 15:18

Joel Coehoorn · Accepted Answer · 2009-05-27 14:27:48Z

15

Just to be snarky:

if (A === 0 || B === 0)

answered May 27, 2009 at 14:27

Joel Coehoorn

418k114 gold badges582 silver badges820 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Eoin Campbell Over a year ago

Now all you have to do is change your name from "Coehoorn" to "Coercion" ;)

Nosredna Over a year ago

Actually, that's a good point. Without the strict check for equality, all kinds of falsy values count as zero. If we're going to be lax, might as well just do if !(A && B)

Boris Guéry · Accepted Answer · 2009-05-27 14:25:14Z

10

if (A == 0 || B == 0)

or

if ((A == 0) || (B == 0))

Check out Control Structures and Operators on Wikibooks

answered May 27, 2009 at 14:25

Boris Guéry

47.6k8 gold badges56 silver badges88 bronze badges

Comments

Kieveli · Accepted Answer · 2009-05-27 14:25:09Z

8

if (  A == 0  ||  B == 0 ) {
}

answered May 27, 2009 at 14:25

Kieveli

11.1k7 gold badges60 silver badges84 bronze badges

1 Comment

Jason S Over a year ago

I've faced this dilemma before; what I did was give the best answer a checkmark (15pts) and the rest of them that were almost as good +1s.

Brian R. Bondy · Accepted Answer · 2009-05-27 14:30:30Z

6

depends if you mean exclusive or inclusive OR :)

Inclusive OR:

if(A == 0 || B == 0) 
{ 
}

Exclusive OR:

if(A == 0 && B != 0 || A != 0 && B == 0) 
{ 
}

answered May 27, 2009 at 14:30

Brian R. Bondy

349k129 gold badges607 silver badges641 bronze badges

2 Comments

annakata Over a year ago

Actually a simpler xor can be achieved by if(!A != !B) but perhaps readability suffers. JS also has a native bitwise xor in ^ where that applies.

Daniel O Over a year ago

annakata: Why not (A != B). It will give the same truth table as (A==0 XOR B==0).

Collectives™ on Stack Overflow

Javascript syntax

4 Answers 4

2 Comments

Comments

1 Comment

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

4 Answers 4

2 Comments

Comments

1 Comment

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related