A conditional statement in computer programming that allows you to perform 2 different blocks of code depending on whether or not the given condition is met. The condition is a simple as

   if (condition == 1){  //checks to see if the condition is true (true = 1 in programming)
      Code to be executed   //This code will be executed if the condition is met 
      }
      
   else{                 //If the initial condition is not met/is false
       alternative block of code to be executed  //Code to be executed if the condition is not met
       }