where to use switch statement and where to use if statement in javascript code example
Example 1: switch statement javascript
function caseInSwitch(val) {
var answer = "";
switch(val) {
case 1:
answer = "alpha";
console.log(answer);
break;
case 2:
answer = "beta";
break;
case 3:
answer = "gamma";
break;
case 4:
answer = "delta";
break;
}
return answer;
}
caseInSwitch(1);
Example 2: js convert if/else statement to switch case
var gradeOut = 70;
var totalGrade = 80;
if (gradeOut >= 90)
gradeOut+= "My letter grade is: A";
else if (totalGrade < 90 && totalGrade >= 80)
gradeOut+= "My letter grade is: B";
else if (totalGrade < 80 && totalGrade >= 70)
gradeOut+= "My letter grade is: C";
else if (totalGrade < 70 && totalGrade >= 60)
gradeOut+= "My letter grade is: D";
else if (totalGrade < 60)
gradeOut+= "My letter grade is: F";
switch(true) {
case gradeOut<60:
gradeOut= "My letter grade is: F";
break;
case gradeOut<70:
gradeOut= "My letter grade is: D";
break;
case gradeOut<80:
gradeOut="My letter grade is: C";
break;
}