This is my first time with javascript, I know Its awful hahaha
I'm looking for a way to display only the currentDateTime value from the json, the number after the T to be more specific, when clicking the button, but everytime I click on the button, It displays all the json data. Is there a better way to do this, I mean, a correct way?
<!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>World Clock</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
<h1 class="msg">World Clock</h1>
<p class="dsc">Click one of the buttons to see the current time</p>
<button class="btn1" onclick="estFunc()">Eastern Standard Time (EST)</button>
fetch('http://worldclockapi.com/api/json/est/now')
.then(response => response.json())
.then(data => time = data)
.then(() => console.log(time["currentDateTime"]))
function estFunc() {
const obj = {time};
const estJson = JSON.stringify(obj);
document.getElementById("est").innerHTML = estJson;
}
const estFunc = async () => {
const response = await fetch('http://worldclockapi.com/api/json/est/now', {
method: 'GET',
headers: {
'Content-Type': 'application/json'
}
});
const data = await response.json(); //extract JSON from the http response
// do something with JSON
document.getElementById("est").innerHTML = data.currentDateTime;
}
<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>World Clock</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
<h1 class="msg">World Clock</h1>
<p class="dsc">Click one of the buttons to see the current time</p>
<button class="btn1" onclick="estFunc()">Eastern Standard Time (EST)</button>
<div id="est"></div>
</body>
</html>
The other answers are not wrong but don't provide an explanation on what's wrong.
Your problem is that you stringify the whole object you get from the server, not just the currentDateTime.
fetch('http://worldclockapi.com/api/json/est/now')
.then(response => response.json())
.then(data => time = data.currentDateTime.time) // only assign currentDateTime.time instead of everything
.then(() => console.log(time.currentDateTime.time))
Related
Basic HTML
<!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>Document</title>
</head>
<body>
<button class = "hitknop">Hit!</button>
</body>
<script src="index.js" defer></script>
</html>
My JS
const deckinit = "https://deckofcardsapi.com/api/deck/new/shuffle/?deck_count=1";
const hitknoppie = document.querySelector("hitknop");
let deckId;
async function deckophalen(){
const response = await fetch (deckinit);
const deckopties = await response.json();
deckId = deckopties.deck_id;
console.log(deckId);
}
deckophalen();
hitknoppie.onclick = async function (){
const kaartlink = `https://deckofcardsapi.com/api/deck/${deckId}/draw/?count=1`;
const response = await fetch (kaartlink);
const kaart = await response.json();
console.log(kaart);
}
I was expecting it to show the result of a single card, but it now just gives me the error that I cannot set properties of null setting 'onclick'.
I tried moving the script tag and adding defer to my Js document without success.
You must add . because you are calling a class. It must look like this:const hitknoppie = document.querySelector(".hitknop");
How can I get printed console object value to HTML?
I have JavaScript fetch code like this:
const comments = fetch("https://api.github.com/repos/pieceofdiy/comments/issues/1")
.then((response) => response.json())
.then((labels) => {
return labels.comments;
});
const printComments = () => {
comments.then((number) => {
console.log(number);
});
};
printComments()
printComments() numeric object value shows correct in console, but how to show it in HTML
to <span id="comments">..</span> ?
With JS you can edit the DOM Hierarchy by searching for your desired Element to change.
const commentsEl = document.querySelector('.comments');
commentsEl.innerHTML = printComments();
With document.querySelector(CSS-Selector) you can search the DOM-Tree for a sufficient Element matching your Selector
We store the Element in a variable and change the Content of this Element by saving the comments in the property .innerHTML.
I've added a snippet demonstrating the changes below, and also changed some bits to improve your code.
As the fetch-Method is asynchronous, you’ll see fetching comments ... for a brief moment, as we change the content when the fetch finished and we got the results.
const commentsEl = document.querySelector('.comments');
// We fetch the comments as before
fetch("https://api.github.com/repos/pieceofdiy/comments/issues/1")
.then((response) => response.json())
.then((labels) => {
// But when we get the results, we immedietly change the contents of the comments span.
commentsEl.innerHTML = labels.comments;
});
<div class="container">
<p>Comments:</p>
<span class="comments">Fetching comments ...</span>
</div>
You could try setting a p tag with an id, ex: <p id=“comments”>and then using document.getElementById(“comments”).innerValue = number;
Place that second piece of code into printComments()
First you need to get your span tag in your html document.
Then define the innerHtml property of the span element by the value returned by the promise, in this case in your case the value is returned through a callback, so you simply have to perform the process in the scope of the callback.
Here is a snippet to illustrate this:
<!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>Document</title>
</head>
<body>
<span id="comments"></span>
<script>
const span = document.getElementById("comments");
const comments = fetch("https://api.github.com/repos/pieceofdiy/comments/issues/1")
.then((response) => response.json())
.then((labels) => {
return labels.comments;
});
comments
.then(res => span.innerHTML = res)
.catch(err => console.log(err));
</script>
</body>
</html>
But it can be done more cleanly this way:
<!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>Document</title>
</head>
<body>
<ol>
<li>Comments: <span id="comments1"></span></li>
<li>Comments: <span id="comments2"></span></li>
<li>Comments: <span id="comments3"></span></li>
</ol>
<script>
const comments1 = document.getElementById("comments1");
const comments2 = document.getElementById("comments2");
const comments3 = document.getElementById("comments3");
const printComment = async (url, HTMLTag) => {
try {
const request = await fetch(url);
const response = await request.json();
HTMLTag.innerHTML = response.comments;
} catch (error) {
console.log(error);
}
};
printComment("https://api.github.com/repos/pieceofdiy/comments/issues/1", comments1);
printComment("https://api.github.com/repos/pieceofdiy/comments/issues/1", comments2);
printComment("https://api.github.com/repos/pieceofdiy/comments/issues/1", comments3);
</script>
</body>
</html>
Good luck !
I created an HTML file that has two script
it looks like this
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body>
<script src='src/moduleOne.js'></script>
<script src='src/moduleTwo.js'></script>
</body>
</html>
and the first module of javascript has simple code
(function() {
let hello = 'frank';
})();
and the second one has function inside it
(function() {
function problemIsNotOccur() {
return name === undefined;
}
console.log(problemIsNotOccur());
})();
What should happen is the name should return Error name is undefind or return undefined value
But
name return '' empty string (I don't why that happen)
Your question is not clear in your case name is not defined because is not declared
(function() {
let name; ///name now is undefined
function problemIsNotOccur() {
return name === undefined; /// return true
}
console.log(problemIsNotOccur());
})();
I have just copied your code but instead of using 2 separate files, I put both functions inline and the result is "false" which is what is to be expected. The functions don't make much sense though. The first one only assigns a value to a variable and the other one returns "false" every time because you didn't define "name".
For reference, here is how I tested it:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body>
<script>
(function() {
let hello = 'frank';
})();
(function() {
function problemIsNotOccur() {
return name === undefined;
}
console.log(problemIsNotOccur());
})();
</script
</body>
</html>
I want to make the method or only copy to clipboard the "syntax" part of a paragraph.
I've done the logic to get the specific part of content I want and stored it in variable "syntaxClean". Now I just need to copy it somehow.
document.execCommand("copy"); would be awesome, but I just can't seem to make it work.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Test</title>
</head>
<body>
<pre id="test"></pre>
<script>
const message = "====== Executor details =======\nathena#21.109.21.25 (tunneled:39516)\n====== Request details ========\nClass....................: com.ericsson.athena.taf.os.linux.commands.common.SimpleCmdRequest\nThread : ................: main\nExpected prompt..........: ^((?![<?]|\\\\.{3}|(\\\\S+\\\\s){6,}).)*[>#$%]+(\\\\\\\\u001B\\\\[(\\\\d;?)*[m|n|K])*\\\\s(\\\\\\\\u001B\\\\[(\\\\d;?)*[m|n|K])*$|#\\\\s\\\\u001B\\\\[6n\nPrompt forced............: false\nTimeout..................: 20000ms\nSyntax...................: lsb_release -i\n"
document.getElementById("test").append(message);
var res = message.split("\n");
for (var i in res) {
if (res[i].indexOf("Syntax") != -1) {
var syntax = res[i].split(':');
var syntaxClean = syntax[1].slice(1);
console.log(syntaxClean);
}
}
</script>
</body>
</html>
In this example I would like to copy to clipboard "lsb_release -i" and I have it stored in variable syntaxClean as I've already said above.
Any help is appreciated!
You can achieve this by creating a dummy textarea like this:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Test</title>
</head>
<body>
<pre id="test"></pre>
<button onclick="copy()">Copy</button>
<script>
const message = "====== Executor details =======\nathena#21.109.21.25 (tunneled:39516)\n====== Request details ========\nClass....................: com.ericsson.athena.taf.os.linux.commands.common.SimpleCmdRequest\nThread : ................: main\nExpected prompt..........: ^((?![<?]|\\\\.{3}|(\\\\S+\\\\s){6,}).)*[>#$%]+(\\\\\\\\u001B\\\\[(\\\\d;?)*[m|n|K])*\\\\s(\\\\\\\\u001B\\\\[(\\\\d;?)*[m|n|K])*$|#\\\\s\\\\u001B\\\\[6n\nPrompt forced............: false\nTimeout..................: 20000ms\nSyntax...................: lsb_release -i\n"
document.getElementById("test").append(message);
function copy() {
var res = message.split("\n");
for (var i in res) {
if (res[i].indexOf("Syntax") != -1) {
var syntax = res[i].split(':');
var syntaxClean = syntax[1].slice(1);
console.log(syntaxClean);
copyToClipboard(syntaxClean);
}
}
}
function copyToClipboard(text) {
var dummyElm = document.createElement("textarea");
document.body.appendChild(dummyElm);
dummyElm.value = text;
dummyElm.select();
document.execCommand("copy");
document.body.removeChild(dummyElm);
}
</script>
</body>
</html>
I'm trying to make a very simple html document with some vanilla JavaScript to sort some elements in it.
I've been able to use .map() to print all the elements of an array, but I'd like to include them in html elements. For example. using an <h1> or a <p>.
This is the code I have so far:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Test</title>
</head>
<body onload="mapping()">
<h1>
<script>
const array = [1, 2, 3];
function mapping() {
array.map(arrayItem => {
document.write(arrayItem)
})
}
</script>
</h1>
</body>
</html>
How can I include HTML inside the script, so I can do something with each one of those returned elements? I mean, something like this:
<script>
const array = [1, 2, 3];
function mapping() {
array.map(arrayItem => {
<h1>document.write(arrayItem)</h1>
})
}
</script>
This should work.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Test</title>
</head>
<body onload="mapping()">
<script>
const array = [1, 2, 3];
function mapping() {
array.forEach(arrayItem => {
var newEle = document.createElement('h1');
newEle.innerHTML = arrayItem;
document.body.appendChild(newEle);
});
}
</script>
</body>
</html>
I guess what you want to do is something like this:
<div>
<script type="text/javascript">
document.write("<h1>Main title</h1>")
</script>
</div>
You might want to consider checking the documentation for Javascript at the link I provided. It gives a lot of useful examples and methods. I took the snippet code from there.Hope it helps.