44 lines
1.5 KiB
Markdown
44 lines
1.5 KiB
Markdown
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---
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title: Comparison with the Equality Operator
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---
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## Comparison with the equality operator
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### Problem explanation:
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_Add the equality operator to the indicated line so that the function will return "Equal" when `val` is equivalent to 12._
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#### Hint 1
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Remember that _equality is different from assignment (`=`), which assigns the value at the right of the operator to a variable in the left._<sup><a href="#cite1">1</a></sup>
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> _try to solve the problem now_
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## Spoiler alert!
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**Solution ahead!**
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## Basic code solution:
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```javascript
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function testEqual(val) {
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if (val == 12) { // Change this line
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return "Equal";
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}
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return "Not equal";
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}
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// Change this value to test
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testEqual(10);
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```
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· [Run code at repl.it](https://repl.it/@AdrianSkar/Basic-JS-Equality-operator)
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### Code explanation
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The function first evaluates `if` the condition `(val == 12)` evaluates to `true`. If it does, it returns the statement between the curly braces ("Equal"). If it doesn't, it returns the next `return` statement outside them ("Not equal").
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### Sources
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<span id="cite1">1</span>. ["Basic JavaScript: Comparison with the Equality Operator", fCC lesson at *Javascript Algorithms And Data Structures Certification*](https://learn.freecodecamp.org/javascript-algorithms-and-data-structures/basic-javascript/comparison-with-the-equality-operator)
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### Resources
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- ["Equality operator" - *MDN JavaScript reference*](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Comparison_Operators#Equality_())
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