# KonsolScript:Tutorials:Conditional

## Conditional

In programming, you can achieve artificial intelligence with the help of Conditionals. We provide a question answerable by *yes* or *no* which will be acted-upon by *then do this* or *then do that*.

### Conditional Operators

In KonsolScript, we have **EQ** (*EQual to*), **NE** (*Not Equal to*), **GT** (*Greater Than*), **GE** (*Greater than or Equal to*), **LT** (*Less Than*), and **LE** (*Less than or Equal to*).

With these conditional operators, we can form a question in KonsolScript that means is *1 equal to 2*?

1 EQ 2

### If statement

The **if** statement is the "*then do this*" of conditionals.

//demonstrating if statement function main() { if (1 EQ 2) { Konsol:Log("1 is equal to 2") } } //Outputs (nothing)...

The sample above won't output anything since **1** is *not* equal to **2**.

### Else statement

The **else** statement is the "*then do that*" of conditionals.

//demonstrating else statement function main() { if (1 EQ 2) { Konsol:Log("1 is equal to 2") } else { Konsol:Log("1 is NOT equal to 2") } } //Outputs... //1 is NOT equal to 2

The sample above would output "*1 is NOT equal to 2*" since **1**, *surely*, is not equal to **2**.

### Else-If statement

The **else if** statement is where we try to make another questioning.

//demonstrating else-if statement function main() { if (1 EQ 2) { Konsol:Log("1 is equal to 2") } else if (1 LT 2) { Konsol:Log("1 is less than 2") } else { Konsol:Log("1 is NOT equal to 2") } } //Outputs... //1 is less than 2

The above sample will print "*1 is less than 2*" and not "*1 is NOT equal to 2*" because the second question was answered **yes** so the *no* part will not be executed.

## Last Words

The **else** statement can never be written before **if** statement. The samples below will give you error.

//demonstrating wrong usage of if-else statement else { Konsol:Log("1 is NOT equal to 2") } if (1 EQ 2) { Konsol:Log("1 is equal to 2") }

//demonstrating wrong usage of if-else statement else if (1 LT 2) { Konsol:Log("1 is less than 2") } if (1 EQ 2) { Konsol:Log("1 is equal to 2") }

Also, if you're more used to using the conditional operators of C/C++, you can use the **==** (*same with* **EQ**), **!=** (*same with* **NE**), **>** (*same with* **GT**), **>=** (*same with* **GE**), **<** (*same with* **LT**), and **<=** (*same with* **LE**). See the sample below.

//demonstrating else-if statement function main() { if (1 == 2) { Konsol:Log("1 is equal to 2") } else if (1 < 2) { Konsol:Log("1 is less than 2") } else { Konsol:Log("1 is NOT equal to 2") } } //Outputs... //1 is less than 2

~creek23~