1.6 KiB
id | title | challengeType | forumTopicId | dashedName |
---|---|---|---|---|
587d7b7e367417b2b2512b24 | Use the Conditional (Ternary) Operator | 1 | 301181 | use-the-conditional-ternary-operator |
--description--
The conditional operator, also called the ternary operator, can be used as a one line if-else expression.
The syntax is a ? b : c
, where a
is the condition, b
is the code to run when the condition returns true
, and c
is the code to run when the condition returns false
.
The following function uses an if/else
statement to check a condition:
function findGreater(a, b) {
if(a > b) {
return "a is greater";
}
else {
return "b is greater";
}
}
This can be re-written using the conditional operator:
function findGreater(a, b) {
return a > b ? "a is greater" : "b is greater";
}
--instructions--
Use the conditional operator in the checkEqual
function to check if two numbers are equal or not. The function should return either the string Equal
or the string Not Equal
.
--hints--
checkEqual
should use the conditional operator
assert(/.+?\s*?\?\s*?.+?\s*?:\s*?.+?/.test(code));
checkEqual(1, 2)
should return the string Not Equal
assert(checkEqual(1, 2) === 'Not Equal');
checkEqual(1, 1)
should return the string Equal
assert(checkEqual(1, 1) === 'Equal');
checkEqual(1, -1)
should return the string Not Equal
assert(checkEqual(1, -1) === 'Not Equal');
--seed--
--seed-contents--
function checkEqual(a, b) {
}
checkEqual(1, 2);
--solutions--
function checkEqual(a, b) {
return a === b ? "Equal" : "Not Equal";
}