CODEWITHSUNDEEP
javascript
idontknowanygoodusernames
idontknowanygoodusernames

Reputation: 171

How do I combine and conditions?

Hi I'm new to this site and programming so I'm sorry if this question is dumb. I'll get to the point.

If (a == 1 && b == 2)
{
    executeFunction
}
If (a == 2 && b == 3)
{
    executeSameFunctionAsAbove
}

How would I combine the two if statements? Both will execute the same function.

Upvotes: 2

Views: 736

Answers (4)

M0ns1f
M0ns1f

Reputation: 2725

you'r looking for JavaScript If...Else Statements

Conditional Statements Very often when you write code, you want to perform different actions for different decisions.

You can use conditional statements in your code to do this.

In JavaScript we have the following conditional statements:

  • Use if to specify a block of code to be executed, if a specified condition is true
  • Use else to specify a block of code to be executed, if the same condition is false
  • Use else if to specify a new condition to test, if the first condition is false
  • Use switch to specify many alternative blocks of code to be executed

and JavaScript Logical Operators :

 && and (x < 10 && y > 1) is true   
 || or  (x == 5 || y == 5) is false
 !  not !(x == y) is true

So using conditional statements you function would be like 

if ((a == 1 || a == 2)&& (b == 2 || b == 3))
{
 executeFunction
}

Upvotes: 1

JulianSoto
JulianSoto

Reputation: 340

if ((a == 1 && b == 2) || (a == 2 && b == 3)){
    executeFunction
}

Simply use parenthesis to group conditions, and check if one or more statements are true with the OR operator (||).

According to this wikipedia article the AND operator is executed before OR operator, so you can do the following without any difference:

if (a == 1 && b == 2 || a == 2 && b == 3){
    executeFunction
}

Upvotes: 1

Mr. Alien
Mr. Alien

Reputation: 157334

It can be,

if ((a == 1 && b == 2) || (a == 2 && b == 3)) {
  //your function goes here
}

Here, we check if either of the two condition matches separating them with || which is nothing but an OR operator.

Just couple of suggestions here,

  • If the data is type sensitive, make sure you use === which will check for the data type as well while comparing and not just the value
  • You are using var keywords for each on of them else they'll be global.

Upvotes: 2

Abozanona
Abozanona

Reputation: 2285

combine both conditions with or

If (a == 1 && b == 2 || a == 1 && b == 2)
{
    executeFunction;
}

Please note than the && operation will be executed before the || operation. But for any general conditions you may use parentheses for every one like this.

If ((some conditions) || (some other conditions) || ...)

Or for your case

If ((a == 1 && b == 2) || (a == 1 && b == 2))
    do_someting();

Upvotes: 0

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