control flow

syedamir5560 · syedamir5560 · commit f0ecd9b1f474 · 2023-08-18T12:01:20.000+05:30
diff --git a/control-flow.js b/control-flow.js
@@ -0,0 +1,104 @@
+/*
+
+What is a condition in code?
+Conditions are statements that are created by the programmer which evaluates actions in the program and evaluates if it's true or false.
+
+JavaScript If-else
+
+The JavaScript if-else statement is used to execute the code whether condition is true or false. There are three forms of if statement in JavaScript.
+
+    1)If Statement
+    2)If else statement
+    3)if else if statement
+
+1)if statement
+
+It evaluates the content only if expression is true. The signature of JavaScript if statement is given below.
+
+    if(expression){  
+    //content to be evaluated  
+    }  
+
+let age1 = 18;
+if (age1 >= 18) {
+    console.log('You can sign up');
+}
+
+JavaScript If...else Statement=>
+
+It evaluates the content whether condition is true of false. The syntax of JavaScript if-else statement is given below.
+
+    if(expression){  
+    //content to be evaluated if condition is true  
+    }  
+    else{  
+    //content to be evaluated if condition is false  
+    }   
+
+var a = 20;
+if (a % 2 == 0) {
+    document.write("a is even number");
+}
+else {
+    document.write("a is odd number");
+}
+
+JavaScript If...else if statement
+
+It evaluates the content only if expression is true from several expressions. The signature of JavaScript if else if statement is given below.
+
+if(expression1){  
+    //content to be evaluated if expression1 is true  
+    }  
+    else if(expression2){  
+    //content to be evaluated if expression2 is true  
+    }  
+    else if(expression3){  
+    //content to be evaluated if expression3 is true  
+    }  
+    else{  
+    //content to be evaluated if no expression is true  
+    }  
+
+var b = 40;
+if (b > 40) {
+    document.write("b is greayer than 30");
+}
+else if (b < 40) {
+    document.write("b is less than 40");
+}
+
+else if (b == 40) {
+    document.write("b is equal to 40");
+}
+
+Introduction to the JavaScript switch case statement
+
+The switch statement evaluates an expression, compares its result with case values, and executes the statement associated with the matching case value.
+
+var grade = "A";
+var res;
+
+switch (grade) {
+    case 'A':
+        res = "grade A";
+        break;
+
+    case 'B':
+        res = "grade B";
+        break;
+
+    case 'c':
+        res = "grade c";
+        break;
+
+
+    default:
+        res = 'null';
+        break;
+}
+
+document.write(res);
+
+
+*/
