curriculum/challenges/english/blocks/learn-the-date-object-by-building-a-date-formatter/660746a665a61c7075a0f457.md
In the previous project, you learned how to work with the join method. This method takes an array of elements and joins them into a string. Similar to the split method, the join method also takes an optional separator. If you don't provide a separator, the default separator is a comma.
Here is an example of using the join method:
// returns "1-2-3-4-5"
[1, 2, 3, 4, 5].join("-");
Chain the join method to your reverse method. Pass in an empty string as the separator.
Open up the console and see the output.
You should chain join('') to the reverse method.
assert.strictEqual(exampleSentence, 'freeCodeCamp rules');
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Learn the Date Object by Building a Date Formatter</title>
<link rel="stylesheet" href="./styles.css" />
</head>
<body>
<main>
<div class="title-container">
<h1 class="title">Today's Date</h1>
<svg
class="date-svg"
xmlns="http://www.w3.org/2000/svg"
version="1.0"
width="512.000000pt"
height="512.000000pt"
viewBox="0 0 512.000000 512.000000"
preserveAspectRatio="xMidYMid meet"
>
<g
transform="translate(0.000000,512.000000) scale(0.100000,-0.100000)"
fill="#fff"
stroke="none"
>
<path
d="M1145 4777 c-71 -24 -120 -54 -164 -102 -59 -64 -83 -124 -89 -216 l-4 -77 -147 -3 c-142 -4 -149 -5 -213 -37 -81 -40 -149 -111 -177 -188 -21 -54 -21 -64 -21 -1789 0 -1725 0 -1735 21 -1789 28 -77 96 -148 177 -188 l67 -33 1950 0 1950 0 67 33 c74 36 133 96 170 170 l23 47 0 1760 0 1760 -23 47 c-37 74 -96 134 -169 170 -63 31 -71 32 -213 36 l-148 4 -4 77 c-8 133 -82 242 -200 297 -54 25 -75 29 -148 29 -94 -1 -151 -20 -220 -75 -75 -59 -130 -181 -130 -287 l0 -43 -954 0 -954 0 -7 74 c-12 137 -89 251 -201 303 -66 30 -179 39 -239 20z m209 -164 c23 -16 52 -49 66 -73 l25 -45 0 -365 0 -365 -28 -47 c-30 -52 -88 -92 -149 -103 -54 -10 -137 17 -175 57 -65 69 -64 60 -61 471 l3 373 27 41 c17 26 45 50 80 68 71 35 151 31 212 -12z m2594 11 c41 -20 59 -37 82 -78 l30 -51 0 -360 c0 -329 -2 -364 -19 -401 -36 -79 -137 -133 -222 -119 -57 10 -125 58 -151 107 -23 42 -23 50 -26 388 -3 377 -1 403 51 465 62 76 162 95 255 49z m537 -2717 l0 -1239 -24 -19 c-23 -19 -67 -19 -1916 -19 -1849 0 -1893 0 -1916 19 l-24 19 -3 1241 -2 1241 1942 -2 1943 -3 0 -1238z"
/>
<path
d="M1112 2493 l3 -158 318 -3 317 -2 0 160 0 160 -320 0 -321 0 3 -157z"
/>
<path
d="M2230 2490 l0 -160 315 0 315 0 0 160 0 160 -315 0 -315 0 0 -160z"
/>
<path
d="M3342 2493 l3 -158 310 0 310 0 3 158 3 157 -316 0 -316 0 3 -157z"
/>
<path
d="M1110 1855 l0 -155 320 0 320 0 0 155 0 155 -320 0 -320 0 0 -155z"
/>
<path
d="M2230 1855 l0 -155 315 0 315 0 0 155 0 155 -315 0 -315 0 0 -155z"
/>
<path
d="M3340 1855 l0 -155 315 0 315 0 0 155 0 155 -315 0 -315 0 0 -155z"
/>
<path
d="M1117 1383 c-4 -3 -7 -78 -7 -165 l0 -158 320 0 320 0 0 165 0 165 -313 0 c-173 0 -317 -3 -320 -7z"
/>
<path
d="M2230 1225 l0 -165 315 0 315 0 0 165 0 165 -315 0 -315 0 0 -165z"
/>
<path
d="M3347 1383 c-4 -3 -7 -78 -7 -165 l0 -158 315 0 315 0 -2 163 -3 162 -306 3 c-168 1 -308 -1 -312 -5z"
/>
</g>
</svg>
</div>
<div class="divider"></div>
<div class="dropdown-container">
<select name="date-options" id="date-options">
<option value="dd-mm-yyyy">Day, Month, Year</option>
<option value="yyyy-mm-dd">Year, Month, Day</option>
<option value="mm-dd-yyyy-h-mm">
Month, Day, Year, Hours, Minutes
</option>
</select>
<div class="select-icon">
<svg
class="icon"
xmlns="http://www.w3.org/2000/svg"
width="25"
height="35"
viewBox="0 0 24 24"
>
<rect x="0" fill="none" width="24" height="24" />
<g>
<path d="M7 10l5 5 5-5" />
</g>
</svg>
</div>
</div>
<p id="current-date"></p>
</main>
<script src="./script.js"></script>
</body>
</html>
*,
*::before,
*::after {
margin: 0;
padding: 0;
box-sizing: border-box;
}
:root {
--dark-grey: #0a0a23;
--white: #ffffff;
--yellow: #f1be32;
}
body {
color: var(--white);
background-color: var(--dark-grey);
}
.title-container {
margin: 10px 0;
display: flex;
align-items: center;
justify-content: center;
gap: 8px;
}
.title {
font-size: 2.5rem;
}
.date-svg {
width: 30px;
height: 30px;
}
.divider {
margin: auto;
width: 150px;
height: 10px;
background-color: var(--yellow);
}
.dropdown-container {
width: 50%;
margin: 40px auto;
position: relative;
}
select {
display: block;
margin: 20px auto 0;
width: 100%;
height: 50px;
font-size: 100%;
font-weight: bold;
cursor: pointer;
background-color: var(--white);
border: none;
color: var(--dark-grey);
appearance: none;
padding: 10px;
padding-right: 38px;
-webkit-appearance: none;
-moz-appearance: none;
transition: color 0.3s ease, background-color 0.3s ease,
border-bottom-color 0.3s ease;
}
.select-icon {
position: absolute;
top: 4px;
right: 4px;
width: 30px;
height: 36px;
pointer-events: none;
padding-left: 5px;
transition: background-color 0.3s ease, border-color 0.3s ease;
}
.select-icon svg.icon {
transition: fill 0.3s ease;
fill: var(--dark-grey);
}
#current-date {
font-size: 2rem;
text-align: center;
}
@media (max-width: 375px) {
.title {
font-size: 2rem;
}
.dropdown-container {
width: 80%;
}
.date-svg {
display: none;
}
}
const currentDateParagraph = document.getElementById("current-date");
const dateOptionsSelectElement = document.getElementById("date-options");
const date = new Date();
const day = date.getDate();
const month = date.getMonth() + 1;
const year = date.getFullYear();
const hours = date.getHours();
const minutes = date.getMinutes();
const formattedDate = `${day}-${month}-${year}`;
currentDateParagraph.textContent = formattedDate;
--fcc-editable-region--
const exampleSentence = "selur pmaCedoCeerf".split("").reverse();
console.log(exampleSentence);
--fcc-editable-region--
dateOptionsSelectElement.addEventListener("change", () => {
switch (dateOptionsSelectElement.value) {
case "yyyy-mm-dd":
currentDateParagraph.textContent = formattedDate
}
});