98 lines
1.9 KiB
Markdown
98 lines
1.9 KiB
Markdown
---
|
|
id: 56533eb9ac21ba0edf2244bd
|
|
title: Passing Values to Functions with Arguments
|
|
challengeType: 1
|
|
videoUrl: ''
|
|
localeTitle: ''
|
|
---
|
|
|
|
## Description
|
|
undefined
|
|
|
|
## Instructions
|
|
undefined
|
|
|
|
## Tests
|
|
<section id='tests'>
|
|
|
|
```yml
|
|
tests:
|
|
- text: ''
|
|
testString: 'assert(typeof functionWithArgs === "function", "<code>functionWithArgs</code> should be a function");'
|
|
- text: ''
|
|
testString: 'if(typeof functionWithArgs === "function") { capture(); functionWithArgs(1,2); uncapture(); } assert(logOutput == 3, "<code>functionWithArgs(1,2)</code> should output <code>3</code>");'
|
|
- text: ''
|
|
testString: 'if(typeof functionWithArgs === "function") { capture(); functionWithArgs(7,9); uncapture(); } assert(logOutput == 16, "<code>functionWithArgs(7,9)</code> should output <code>16</code>");'
|
|
- text: ''
|
|
testString: 'assert(/^\s*functionWithArgs\s*\(\s*\d+\s*,\s*\d+\s*\)\s*;/m.test(code), "Call <code>functionWithArgs</code> with two numbers after you define it.");'
|
|
|
|
```
|
|
|
|
</section>
|
|
|
|
## Challenge Seed
|
|
<section id='challengeSeed'>
|
|
|
|
<div id='js-seed'>
|
|
|
|
```js
|
|
// Example
|
|
function ourFunctionWithArgs(a, b) {
|
|
console.log(a - b);
|
|
}
|
|
ourFunctionWithArgs(10, 5); // Outputs 5
|
|
|
|
// Only change code below this line.
|
|
|
|
```
|
|
|
|
</div>
|
|
|
|
### Before Test
|
|
<div id='js-setup'>
|
|
|
|
```js
|
|
var logOutput = "";
|
|
var originalConsole = console
|
|
function capture() {
|
|
var nativeLog = console.log;
|
|
console.log = function (message) {
|
|
if(message) logOutput = JSON.stringify(message).trim();
|
|
if(nativeLog.apply) {
|
|
nativeLog.apply(originalConsole, arguments);
|
|
} else {
|
|
var nativeMsg = Array.prototype.slice.apply(arguments).join(' ');
|
|
nativeLog(nativeMsg);
|
|
}
|
|
};
|
|
}
|
|
|
|
function uncapture() {
|
|
console.log = originalConsole.log;
|
|
}
|
|
|
|
capture();
|
|
|
|
```
|
|
|
|
</div>
|
|
|
|
### After Test
|
|
<div id='js-teardown'>
|
|
|
|
```js
|
|
console.info('after the test');
|
|
```
|
|
|
|
</div>
|
|
|
|
</section>
|
|
|
|
## Solution
|
|
<section id='solution'>
|
|
|
|
```js
|
|
// solution required
|
|
```
|
|
</section>
|