This is a guide to JavaScript if Statement. By using if condition multiple times or nesting inside one in another, we can achieve the end result required. The if statement is a conditional statement available in JavaScript which is used to make a decision and execute a particular block of code only in case a certain condition is satisfied. Var num = document.getElementById("num").value ĭocument.getElementById("result").innerHTML = " Entered number is Zero " ĭocument.getElementById("result").innerHTML = " Entered number is Positive " Įxplanation: Here, we have used if statements multiple times one after one for checking the number entered by the user.
Example #4Ĭheck if number is positive or negative using if statements As the both if conditions are true both the statements will be printed. Example #2ĭocument.getElementById("result2").innerHTML = "c is greater than b" ĭocument.getElementById("result3").innerHTML = "a is not equal to c" Įxplanation: Here, if the outer if condition becomes true, then only the inner if condition will be executed. Examples to implement if Statement in JavaScriptīelow are the examples mentioned: Example #1ĭocument.getElementById("result1").innerHTML = "a is equal to 10" ĭocument.getElementById("result2").innerHTML = "b is equal to 50" ĭocument.getElementById("result3").innerHTML = "c is equal to 30" Įxplanation: Here, we have defined three variables of number datatype and used if statement on each to compare the values.As the first and third condition is true, statements corresponding to both are printed but as the second if condition is false, the corresponding if block is skipped from executing. In both cases, the program will execute the next statements afterward. In case of the condition is true, the if block will be executed and in case of the condition becomes false, the if block will be skipped. It can be seen from the syntax and flowchart that the if statement is followed by a block of code which is called as if block.
In case of if statement in JavaScript, we specify the condition which will return normally Boolean value as true or false.
0 kommentar(er)
