b9c9a95223
* fix: renamed basic html cat photo app steps * fix: renamed css-variables project steps * fix: renamed d3-dashboard filenames * fix: renamed rpg-game filenames * fix: renamed functional-progamming-spreadsheet filenames * fix: renamed calorie-counter project filenames
119 lines
1.6 KiB
Markdown
119 lines
1.6 KiB
Markdown
---
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id: 5d7925330918ae4a2f282e7e
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title: Part 12
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challengeType: 0
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isHidden: true
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---
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## Description
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<section id='description'>
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Use arrow function syntax to define a function `infixEval` which takes `str` and `regex` as arguments and returns `str.replace(regex, "")`.
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</section>
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## Instructions
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<section id='instructions'>
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</section>
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: See description above for instructions.
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testString: assert(/constinfixEval=\(str,regex\)=>str\.replace\(regex,['"]{2}\)/.test(code.replace(/\s/g, '')));
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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<div id='html-seed'>
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```html
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<script>
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const infixToFunction = {
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"+": (x, y) => x + y,
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"-": (x, y) => x - y,
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"*": (x, y) => x * y,
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"/": (x, y) => x / y
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};
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</script>
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```
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</div>
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### Before Test
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<div id='html-setup'>
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```html
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<title>Spreadsheet</title>
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<style>
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#container {
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display: grid;
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grid-template-columns: 50px repeat(10, 200px);
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grid-template-rows: repeat(11, 30px);
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}
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.label {
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background-color: lightgray;
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text-align: center;
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vertical-align: middle;
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line-height: 30px;
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}
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</style>
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</head>
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<body>
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<div id="container">
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<div></div>
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</div>
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```
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</div>
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### After Test
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<div id='html-teardown'>
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```html
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</body>
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</html>
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```
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</div>
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</section>
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## Solution
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<section id='solution'>
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```html
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<script>
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const infixToFunction = {
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"+": (x, y) => x + y,
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"-": (x, y) => x - y,
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"*": (x, y) => x * y,
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"/": (x, y) => x / y
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};
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const infixEval = (str, regex) => str.replace(regex, "");
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</script>
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```
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</section>
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