1.6 KiB
1.6 KiB
| id | title | challengeType |
|---|---|---|
| 5d7925330918ae4a2f282e7e | Part 12 | 0 |
Description
Use arrow function syntax to define a function infixEval which takes str and regex as arguments and returns str.replace(regex, "").
Instructions
Tests
tests:
- text: See description above for instructions.
testString: assert(/constinfixEval=\(str,regex\)=>str\.replace\(regex,['"]{2}\)/.test(code.replace(/\s/g, '')));
Challenge Seed
<script>
const infixToFunction = {
"+": (x, y) => x + y,
"-": (x, y) => x - y,
"*": (x, y) => x * y,
"/": (x, y) => x / y
};
</script>
Before Test
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Spreadsheet</title>
<style>
#container {
display: grid;
grid-template-columns: 50px repeat(10, 200px);
grid-template-rows: repeat(11, 30px);
}
.label {
background-color: lightgray;
text-align: center;
vertical-align: middle;
line-height: 30px;
}
</style>
</head>
<body>
<div id="container">
<div></div>
</div>
After Test
</body>
</html>
Solution
<script>
const infixToFunction = {
"+": (x, y) => x + y,
"-": (x, y) => x - y,
"*": (x, y) => x * y,
"/": (x, y) => x / y
};
const infixEval = (str, regex) => str.replace(regex, "");
</script>