2019-11-05 02:09:40 -01:00
|
|
|
---
|
|
|
|
|
id: 5d792536dc6e3ab29525de9e
|
2020-08-25 02:19:45 -07:00
|
|
|
title: Part 73
|
2019-11-05 02:09:40 -01:00
|
|
|
challengeType: 0
|
|
|
|
|
---
|
|
|
|
|
|
2020-11-27 19:02:05 +01:00
|
|
|
# --description--
|
2019-11-05 02:09:40 -01:00
|
|
|
|
2019-12-09 19:37:02 +09:00
|
|
|
The function in `varRangeExpanded` contains an unused argument. Replace or prefix it with an underscore.
|
2019-11-05 02:09:40 -01:00
|
|
|
|
2020-11-27 19:02:05 +01:00
|
|
|
# --hints--
|
2019-11-05 02:09:40 -01:00
|
|
|
|
2020-11-27 19:02:05 +01:00
|
|
|
See description above for instructions.
|
2019-11-05 02:09:40 -01:00
|
|
|
|
2020-11-27 19:02:05 +01:00
|
|
|
```js
|
|
|
|
|
assert(
|
|
|
|
|
code
|
|
|
|
|
.replace(/\s/g, '')
|
|
|
|
|
.includes('constvarRangeExpanded=x.replace(rangeRegex,(_')
|
|
|
|
|
);
|
|
|
|
|
```
|
2019-11-05 02:09:40 -01:00
|
|
|
|
2020-11-27 19:02:05 +01:00
|
|
|
# --seed--
|
2019-11-05 02:09:40 -01:00
|
|
|
|
2020-11-27 19:02:05 +01:00
|
|
|
## --before-user-code--
|
2019-11-05 02:09:40 -01:00
|
|
|
|
2020-11-27 19:02:05 +01:00
|
|
|
```html
|
|
|
|
|
<!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>
|
2019-11-05 02:09:40 -01:00
|
|
|
```
|
|
|
|
|
|
2020-11-27 19:02:05 +01:00
|
|
|
## --after-user-code--
|
2019-11-05 02:09:40 -01:00
|
|
|
|
2020-11-27 19:02:05 +01:00
|
|
|
```html
|
|
|
|
|
</body>
|
|
|
|
|
</html>
|
|
|
|
|
```
|
2019-11-05 02:09:40 -01:00
|
|
|
|
2020-11-27 19:02:05 +01:00
|
|
|
## --seed-contents--
|
2019-11-05 02:09:40 -01:00
|
|
|
|
|
|
|
|
```html
|
|
|
|
|
<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, (_, arg1, fn, arg2) =>
|
|
|
|
|
infixToFunction[fn](parseFloat(arg1), parseFloat(arg2))
|
|
|
|
|
);
|
|
|
|
|
|
|
|
|
|
const highPrecedence = str => {
|
|
|
|
|
const regex = /([0-9.]+)([*\/])([0-9.]+)/;
|
|
|
|
|
const str2 = infixEval(str, regex);
|
|
|
|
|
return str === str2 ? str : highPrecedence(str2);
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
const spreadsheetFunctions = {
|
|
|
|
|
"": x => x
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
const applyFn = str => {
|
|
|
|
|
const noHigh = highPrecedence(str);
|
|
|
|
|
const infix = /([0-9.]+)([+-])([0-9.]+)/;
|
|
|
|
|
const str2 = infixEval(noHigh, infix);
|
|
|
|
|
const regex = /([a-z]*)\(([0-9., ]*)\)(?!.*\()/i;
|
|
|
|
|
const toNumberList = args => args.split(",").map(parseFloat);
|
|
|
|
|
const applyFunction = (fn, args) =>
|
|
|
|
|
spreadsheetFunctions[fn.toLowerCase()](toNumberList(args));
|
|
|
|
|
return str2.replace(
|
|
|
|
|
regex,
|
|
|
|
|
(match, fn, args) =>
|
|
|
|
|
spreadsheetFunctions.hasOwnProperty(fn.toLowerCase()) ? applyFunction(fn, args) : match
|
|
|
|
|
);
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
const range = (start, end) =>
|
|
|
|
|
start > end ? [] : [start].concat(range(start + 1, end));
|
|
|
|
|
|
|
|
|
|
const charRange = (start, end) =>
|
|
|
|
|
range(start.charCodeAt(0), end.charCodeAt(0)).map(x =>
|
|
|
|
|
String.fromCharCode(x)
|
|
|
|
|
);
|
|
|
|
|
|
|
|
|
|
const evalFormula = x => {
|
|
|
|
|
const rangeRegex = /([A-J])([1-9][0-9]?):([A-J])([1-9][0-9]?)/gi;
|
|
|
|
|
const rangeFromString = (n1, n2) => range(parseInt(n1), parseInt(n2));
|
|
|
|
|
const elemValue = n => c => document.getElementById(c + n).value;
|
|
|
|
|
const addChars = c1 => c2 => n => charRange(c1, c2).map(elemValue(n));
|
|
|
|
|
const varRangeExpanded = x.replace(rangeRegex, (match, c1, n1, c2, n2) =>
|
|
|
|
|
rangeFromString(n1, n2).map(addChars(c1)(c2))
|
|
|
|
|
);
|
|
|
|
|
return varRangeExpanded;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
</script>
|
|
|
|
|
```
|
|
|
|
|
|
2020-11-27 19:02:05 +01:00
|
|
|
# --solutions--
|
2019-11-05 02:09:40 -01:00
|
|
|
|
|
|
|
|
```html
|
|
|
|
|
<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, (_, arg1, fn, arg2) =>
|
|
|
|
|
infixToFunction[fn](parseFloat(arg1), parseFloat(arg2))
|
|
|
|
|
);
|
|
|
|
|
|
|
|
|
|
const highPrecedence = str => {
|
|
|
|
|
const regex = /([0-9.]+)([*\/])([0-9.]+)/;
|
|
|
|
|
const str2 = infixEval(str, regex);
|
|
|
|
|
return str === str2 ? str : highPrecedence(str2);
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
const spreadsheetFunctions = {
|
|
|
|
|
"": x => x
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
const applyFn = str => {
|
|
|
|
|
const noHigh = highPrecedence(str);
|
|
|
|
|
const infix = /([0-9.]+)([+-])([0-9.]+)/;
|
|
|
|
|
const str2 = infixEval(noHigh, infix);
|
|
|
|
|
const regex = /([a-z]*)\(([0-9., ]*)\)(?!.*\()/i;
|
|
|
|
|
const toNumberList = args => args.split(",").map(parseFloat);
|
|
|
|
|
const applyFunction = (fn, args) =>
|
|
|
|
|
spreadsheetFunctions[fn.toLowerCase()](toNumberList(args));
|
|
|
|
|
return str2.replace(
|
|
|
|
|
regex,
|
|
|
|
|
(match, fn, args) =>
|
|
|
|
|
spreadsheetFunctions.hasOwnProperty(fn.toLowerCase()) ? applyFunction(fn, args) : match
|
|
|
|
|
);
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
const range = (start, end) =>
|
|
|
|
|
start > end ? [] : [start].concat(range(start + 1, end));
|
|
|
|
|
|
|
|
|
|
const charRange = (start, end) =>
|
|
|
|
|
range(start.charCodeAt(0), end.charCodeAt(0)).map(x =>
|
|
|
|
|
String.fromCharCode(x)
|
|
|
|
|
);
|
|
|
|
|
|
|
|
|
|
const evalFormula = x => {
|
|
|
|
|
const rangeRegex = /([A-J])([1-9][0-9]?):([A-J])([1-9][0-9]?)/gi;
|
|
|
|
|
const rangeFromString = (n1, n2) => range(parseInt(n1), parseInt(n2));
|
|
|
|
|
const elemValue = n => c => document.getElementById(c + n).value;
|
|
|
|
|
const addChars = c1 => c2 => n => charRange(c1, c2).map(elemValue(n));
|
|
|
|
|
const varRangeExpanded = x.replace(rangeRegex, (_, c1, n1, c2, n2) =>
|
|
|
|
|
rangeFromString(n1, n2).map(addChars(c1)(c2))
|
|
|
|
|
);
|
|
|
|
|
return varRangeExpanded;
|
|
|
|
|
};
|
|
|
|
|
</script>
|
|
|
|
|
```
|
