I am trying to achieve something like this when the user is typing in the input field ABC you should get - after letter C while user is typing so in the end value should show ABC-123.
I have following hook const [newCar, setNewCar] = useState('') that I am calling in the following function
const addCar = () => {
if (newCar.length > 0) {
setCars([
...cars,
{
id: cars.length + 1,
license: newCar,
},
])
setValid(true)
} else {
setValid(false)
}
}
And I created changeText function as follows
const changeText = (newCar) => {
var newVal = newCar.length
if ((newVal === 3) && newVal >= newCar.length){
newCar = newCar + "-"
}
if (newCar.length === 7) {
setNewCar(newCar);
}
}
``` that I call in the `onChangeText={(newCar) => changeText(newCar)}` But when I try to write something in the input field it doesn't add the dash.
Your css selectors are wrong.
You want to style every h2/strong/p that are children of your S.StaffContent component. To do that, the proper css selector is & > h2
Final styles will look like this
& > h2 {
text-align: left;
margin-top: 1em;
margin-bottom: 1em;
}
& > p {
text-align: left;
margin-bottom: 1em;
}
& > strong {
font-size: 1.4em;
font-weight: bold;
margin-top: 1em;
}
By doing so, will get your components styled, assuming that the DOM looks like this.
<div classname='StaffContent'>
<h2>Styled h2</h2>
<p>Styled p</p>
<strong>Styled h2</strong>
</div>
Otherwise, if you wanted to apply the same styles to all the h2, strong and p elements descendants, at any level in the tree, you will need to add universal selectors.
const Component = styled.div(`
h2, * > h2 {
text-align: left;
margin-top: 1em;
margin-bottom: 1em;
color: white;
}
p, * > p {
text-align: left;
margin-bottom: 1em;
}
strong, * > strong {
font-size: 1.4em;
font-weight: bold;
margin-top: 1em;
}
`);
The problem was solved by running yarn upgrade --latest did it before using the yarn upgrade gatsby#3.0.1 as an example
Related
I am displaying the text that is coming from the API as a badge and I want to filter certain things from it and I want to display the badge for each word that comes from the API.
Here is the code:
<span class="badge_style" id="badge" v-if="text.name">{{text.name | displayDesired}}</span>
...
text: [],
...
filters: {
displayDesired: function (val){
return val.replace(/_/g, ' ')
},
created() {
this.$http.get(`/all-text`)
.then((res) => { this.text = res.data })
.catch((err) => {console.log(err)})
}
...
.badge_style {
display: inline-block;
padding: .25em .4em;
font-size: 85%;
font-weight: 700;
line-height: 1;
text-align: center;
white-space: nowrap;
vertical-align: baseline;
border-radius: .25rem;
text-transform: capitalize;
},
#badge {
color: white;
font-size: 12px;
background: blue;
}
{{text.name}} displays => The badge looks like this change_plan1|change_plan2|change_plan3 this is what I am getting from the API.
{{text.name | displayDesired}} with text-transform style displays => Change Plan1|Change Plan2|Change Plan3here the pipe should be replaced by the space and should get a separate badge.
Expected display => The badge should look something like this Change Plan1 Change Plan2 Change Plan3
Please tell me how to achieve the expected output
Convert your filter to method as following
methods: {
displayDesired: function (val){
return val.replaceAll('_', ' ').split('|');
},
as make the template as below:
<span id="badge" v-if="text.name">
<template v-for="(val, i) in displayDesired(text.name)">
<span class="badge_style" style="margin: 2px 2px 2px;" :key="i">{{ val }} </span>
</template>
</span>
I'm creating a multiple choice question program and I have it so that once the correct answer is chosen a new question is generated.
Although I want it to go to the next question automatically, I want it to delay for about 0.5 seconds so the user can see that their answer is correct.
I chose to remove the class and replace it with another class so that the background changes colour. Once the new question comes up I want all the colours to return to normal, so I once again remove the new class and replace it with the old class.
If I don't advance to the new question automatically, the colours come up just the way I like them, but if I create it so that it moves on automatically, I am unable to keep the display the same.
After searching through the forums I read that setTimeout should work, but I haven't had much success. I have also tried doing animations so that it takes time, but that didn't work for me either. The animations worked fine, but it still went on to the new set of questions.
I'll include the whole program as it might be better but the section I'm working on is under the function check().
I've been trying to figure out how to delay something for a long time but have been completely unsuccessful. Oh, please be kind to me, I have very little experience. I have only learned how to do javascript by doing the khan academy course. Thanks!
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Project: listening to sounds </title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
<!-- ***************** CSS styles ***************** -->
<style>
body {
font-family: comic sans ms, sans-serif;
background-image: url("background.jpg");
background-color: rgb(216, 252, 252);
}
form {
font-size: 1.2em;
}
#text {
background-color: wheat;
width: 150px;
height: 25px;
color: blue;
font-size: 1em;
}
.SoundBite {
float: left;
clear: none;
position: absolute;
top: 130px;
left: 100px;
padding: 5px;
background: darkblue;
color: white;
height: 120px;
width: 200px;
border-radius: 50px;
margin: auto;
text-align: center;
vertical-align: middle;
font-size: 5em;
}
.SoundBite:hover {
background-color: darkgreen;
cursor: pointer;
}
.Score {
float: right;
clear: none;
position: absolute;
top: 50px;
left: 140px;
padding: 5px;
background: darkblue;
border-color: pink;
border: 5px;
opacity: 0.8;
color: white;
height: 45px;
width: 120px;
border-radius: 50px;
margin: auto;
text-align: center;
vertical-align: middle;
font-size: 2em;
pointer-events: none;
}
.Answer {
position: absolute;
color: white;
height: 45px;
width: 120px;
padding: 5px;
border-radius: 25px;
margin: auto;
text-align: center;
vertical-align: middle;
font-size: 2em;
background-color: darkblue;
}
.AnswerCorrect {
position: absolute;
color: white;
height: 45px;
width: 120px;
padding: 5px;
border-radius: 25px;
margin: auto;
text-align: center;
vertical-align: middle;
font-size: 2em;
background-color: green;
}
.Answer:hover {
background-color: #e44404;
cursor: pointer;
}
.AnswerWrong {
position: absolute;
color: white;
height: 45px;
width: 120px;
padding: 5px;
border-radius: 25px;
margin: auto;
text-align: center;
vertical-align: middle;
font-size: 2em;
background-color: red;
}
#Answer1 {
top: 20px;
left: 400px;
}
#Answer2 {
top: 85px;
left: 400px;
}
#Answer3 {
top: 150px;
left: 400px;
}
#Answer4 {
top: 220px;
left: 400px;
}
#Answer5 {
top: 290px;
left: 400px;
}
</style>
</head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.4/jquery.min.js"></script>
<body>
<audio id="audio" src="audio/rug.mp3" autostart="false" ></audio>
<audio id = "win" src="audio/win.mp3" autostart = "true"></audio>
<audio id = "lose" src = "audio/lose.mp3" autstart = "true"></audio>
<a onclick="playSound();"><div span class="SoundBite"><i class="fa fa-file-sound-o" id="audio" src="audio/rug.mp3" autostart="false" style="font-size:64px;color:skyblue"></i></div></a>
<a onclick ="checkAnswer = 1; check();"><div class = "Answer" id="Answer1">1</div>
<a onclick ="checkAnswer = 2; check();"><div class = "Answer" id="Answer2">2</div>
<a onclick ="checkAnswer = 3; check();"><div class = "Answer" id="Answer3">3</div>
<a onclick ="checkAnswer = 4; check();"><div class = "Answer" id="Answer4">4</div>
<a onclick ="checkAnswer = 5; check();"><div class = "Answer" id="Answer5">5</div>
<div class = "Score">Score</div>
<!-- <a onclick ="next();"><div id = "Next">Start</div> -->
<!-- ********************************* Javascript programming follows ********************************* -->
<script>
$(function() {
});
// declare the variables to be used ... do I need global variables? Maybe I should think about these...
var word, ext, directory, wordPosition, decoyWordPosition, answerPosition, decoyAnswerPosition, answer, checkAnswer, correct, incorrect, tries;
directory = "audio/";
ext = ".mp3";
correct = 0;
incorrect = 0;
tries = 0;
// list of words that are spoken
word = ["dam", "dog", "dug", "cat", "cot", "cut", "ran", "rot", "rug"];
wordPosition = Math.floor(Math.random()*word.length); // returns a random array wordPosition
/***************************************************************************
** Functions:
**
**************************************************************************/
// function to display word
function displayWord() {
//$(".SoundBite").text(word[wordPosition]);
//$("#audio").attr("src", directory+word[wordPosition]+ext);
}
// function to display the answer in one of the positions that are assigned
function displayAnswer(answerNumber, wordNumber) {
$("#Answer"+answerNumber).text(word[wordNumber]);
$("#audio").attr("src", directory+word[wordPosition]+ext);
}
// function to play the sound
function playSound() {
var sound = document.getElementById("audio");
sound.play();
}
// function to play a winning sound
function win() {
var sound = document.getElementById("win");
sound.play();
}
// function to play a losing sound
function lose() {
var sound = document.getElementById("lose");
sound.play();
}
function timer() {
new Date().toLocaleTimeString();
}
function check() {
if (answer == checkAnswer) {
//$("#Answer"+checkAnswer).animate({height: "45px", opacity: '0'})
//.animate({height: "45px", opacity: '1.0'});
$("#Answer"+checkAnswer).animate({height: "45px", opacity: '0'})
.animate({height: "45px", opacity: '1.0'})
.removeClass("Answer").addClass("AnswerCorrect");
win();
correct++;
tries++;
refresh();
next();
// need a delay function -- can't get it to work.
} else {
$("#Answer"+checkAnswer).removeClass("Answer").addClass("AnswerWrong"); //css({'background-color': 'red'});
lose();
incorrect++;
tries++;
}
// write in the score
$(".Score").text(Math.round(correct/tries*100)+"%");
}
// making a function to populate the answers
function populateAnswers() {
for (var i = 0; i < 6; i++) {
if (answerPosition < 6) {
if (decoyWordPosition == wordPosition) {
answer=answerPosition
}
displayAnswer(answerPosition, decoyWordPosition);
answerPosition++;
decoyWordPosition++;
if (decoyWordPosition >= word.length) { // want to make sure that the words are within the array
decoyWordPosition = 1 // reset to the beginning to 'wrap' the array.
}
} else {
answerPosition = 1;
}
}
}
// using a random generator to place the answer in a random spot 1 through 4
function randomGenerator() {
answerPosition = Math.floor(Math.random()*4)+1;
}
// returns a random array wordPosition
function randomWord() {
wordPosition = Math.floor(Math.random()*word.length);
}
function refresh() {
for (var i = 1; i <= 5; i++) {
$("#Answer"+i).removeClass("AnswerWrong").addClass("Answer");
$("#Answer"+i).removeClass("AnswerCorrect").addClass("Answer");
}
}
/***************************************************************************
* program as a function *
**************************************************************************/
function next() {
$("#Next").text("Continue");
randomWord();
randomGenerator();
// make the decoy answers randomly
if (wordPosition == 0 || wordPosition == 1) {
// In case the array is at the beginning: make the decoy start at the same spot as the wordPosition
decoyWordPosition = wordPosition;
} else {
// start the decoy word after the word
decoyWordPosition = wordPosition -2;
}
populateAnswers();
}
next();
</script>
</body>
</html>
Just for other people who are trying to find the solution to the setTimeout feature.
I was using it like this:
setTimeout(myFunction(), 2000);
However, it won't work with the brackets after the function. You need to omit those brackets:
setTimeout(myFunction, 2000);
I have two <p> and one <button> that extend a certain class named test. I want to know if it is possible to add certain style rules to .test and then specific rules for the element type?
I thought of something like this:
.test {
font-weight: bold;
color: blue;
&p {
font-size: 26px;
}
&button {
font-size: 20px;
}
}
I know it is impossible to write it like that. This example is only for a concept example.
I've read the documentation and alas i found nothing...
Any idea or is this just impossible to achieve?
If I understand correctly you should use :extend:
LESS:
.test {
font-weight: bold;
color: blue;
}
p:extend(.test) {
font-size: 26px;
}
button:extend(.test){
font-size: 20px;
}
Output:
.test, p, button {
font-weight: bold;
color: blue;
}
p {
font-size: 26px;
}
button {
font-size: 20px;
}
How to change text in nav menu when user change width of screen?
I try:
<li>
<p class="navbar-text visible-lg underline">Contacts & Delivery</p>
<p class="navbar-text hidden-lg underline">Contacts</p>
</li>
It's work, but text start text moves up. I can fix it using tag 'a' instead 'p', but i don't wont link in nav menu.
If i understand your problem well, it should be fixed when appending the following CSS code after Bootstrap's CSS:
.navbar-text { margin-left: 15px; margin-right: 15px; }
When you are using Less:
.navbar-text {
margin-left: #navbar-padding-horizontal;
margin-right: #navbar-padding-horizontal;
}
Also see: https://github.com/twbs/bootstrap/pull/15239
update
From https://github.com/twbs/bootstrap/pull/15239 follows that you should not use the .navbar-text inside a li or any other tag. An alternative for the above solution, which keep the .navbar-text as intended, will be to create a new class for texts inside the li 's
less
.navbar-nav-text {
&:extend(.nav > li > a);
&:extend(.navbar-nav > li > a);
p& {
margin: 0;
}
}
.navbar-default {
.navbar-nav-text {
color: #navbar-default-color;
}
}
.navbar-inverse {
.navbar-nav-text {
color: #navbar-inverse-color;
}
}
or css
.navbar-nav-text {
position: relative;
display: block;
padding: 10px 15px;
line-height: 20px;
}
#media (min-width: 768px) {
.navbar-nav-text {
padding-top: 15px;
padding-bottom: 15px;
}
}
p.navbar-nav-text {
margin: 0;
}
.navbar-default .navbar-nav-text {
color: #777777;
}
.navbar-inverse .navbar-nav-text {
color: #9d9d9d;
}
I'm trying to create a simple slider using divs and javascript. I set up a div with six images and an arrow that movies the containder holding the images 528px (the width of each image) every time it's clicked. When I reach the begining or end of the gallery, I want the respective arrow button to fade out so that the user won't keep pressing next/prev.
Any help is appreciated.
JAVASCRIPT
$("#btn-gallery-next").click(function(){
$("div#gallery li").not(this).removeClass('clicked');
$("div#gallery-slide").animate({left:"-=528px"});
if($("div#gallery-slide").position().left < -3168)
{
$("#btn-gallery-next").fadeOut();
}
else {
$("#btn-gallery-next").fadeIn();
}
});
$("#btn-gallery-prev").click(function(){
$("div#gallery li").not(this).removeClass('clicked');
$("div#gallery-slide").animate({left:"+=528px"});
if($("div#gallery-slide").position().left > 0)
{
$("#btn-gallery-prev").fadeOut();
}
else {
$("#btn-gallery-prev").fadeIn();
}
});
HTML
<div id="gallery-slide">
<img class="gallery-img" src="_/img/gallery/img1.jpg" alt="" />
<img class="gallery-img" src="_/img/gallery/img2.jpg" alt="" />
<img class="gallery-img" src="_/img/gallery/img3.jpg" alt="" />
<img class="gallery-img" src="_/img/gallery/img4.jpg" alt="" />
<img class="gallery-img" src="_/img/gallery/img5.jpg" alt="" />
<img class="gallery-img" src="_/img/gallery/img6.jpg" alt="" />
</div>
Try flex slider from woothemes, it have all ur needs.
Why not use a slider library like Owl Slider? It comes with lots of options and configurations. It is super simple to integrate into any project.
Example #1 www.midwestgathering.com/#galleries
Example #2 www.owlgraphic.com/owlcarousel/demos/images.html
Another option is jcarousel. The basic slider is shown with an example that makes the left next button inactive until the user slides to the right, then once the user gets to the end of the gallery the right next button becomes inactive:
JS
(function($) {
$(function() {
$('.jcarousel').jcarousel();
$('.jcarousel-control-prev')
.on('jcarouselcontrol:active', function() {
$(this).removeClass('inactive');
})
.on('jcarouselcontrol:inactive', function() {
$(this).addClass('inactive');
})
.jcarouselControl({
target: '-=1'
});
$('.jcarousel-control-next')
.on('jcarouselcontrol:active', function() {
$(this).removeClass('inactive');
})
.on('jcarouselcontrol:inactive', function() {
$(this).addClass('inactive');
})
.jcarouselControl({
target: '+=1'
});
$('.jcarousel-pagination')
.on('jcarouselpagination:active', 'a', function() {
$(this).addClass('active');
})
.on('jcarouselpagination:inactive', 'a', function() {
$(this).removeClass('active');
})
.jcarouselPagination();
});
})(jQuery);
CSS
.jcarousel-wrapper {
margin: 20px auto;
position: relative;
border: 10px solid #fff;
-webkit-border-radius: 5px;
-moz-border-radius: 5px;
border-radius: 5px;
-webkit-box-shadow: 0 0 2px #999;
-moz-box-shadow: 0 0 2px #999;
box-shadow: 0 0 2px #999;
}
.jcarousel-wrapper .photo-credits {
position: absolute;
right: 15px;
bottom: 0;
font-size: 13px;
color: #fff;
text-shadow: 0 0 1px rgba(0, 0, 0, 0.85);
opacity: .66;
}
.jcarousel-wrapper .photo-credits a {
color: #fff;
}
/** Carousel **/
.jcarousel {
position: relative;
overflow: hidden;
width: 600px;
height: 400px;
}
.jcarousel ul {
width: 20000em;
position: relative;
list-style: none;
margin: 0;
padding: 0;
}
.jcarousel li {
float: left;
}
/** Carousel Controls **/
.jcarousel-control-prev,
.jcarousel-control-next {
position: absolute;
top: 200px;
width: 30px;
height: 30px;
text-align: center;
background: #4E443C;
color: #fff;
text-decoration: none;
text-shadow: 0 0 1px #000;
font: 24px/27px Arial, sans-serif;
-webkit-border-radius: 30px;
-moz-border-radius: 30px;
border-radius: 30px;
-webkit-box-shadow: 0 0 2px #999;
-moz-box-shadow: 0 0 2px #999;
box-shadow: 0 0 2px #999;
}
.jcarousel-control-prev {
left: -50px;
}
.jcarousel-control-next {
right: -50px;
}
.jcarousel-control-prev:hover span,
.jcarousel-control-next:hover span {
display: block;
}
.jcarousel-control-prev.inactive,
.jcarousel-control-next.inactive {
opacity: .5;
cursor: default;
}
/** Carousel Pagination **/
.jcarousel-pagination {
position: absolute;
bottom: 0;
left: 15px;
}
.jcarousel-pagination a {
text-decoration: none;
display: inline-block;
font-size: 11px;
line-height: 14px;
min-width: 14px;
background: #fff;
color: #4E443C;
border-radius: 14px;
padding: 3px;
text-align: center;
margin-right: 2px;
opacity: .75;
}
.jcarousel-pagination a.active {
background: #4E443C;
color: #fff;
opacity: 1;
text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.75);
}
You can find documentation for jcarousel at www.sorgalla.com/jcarousel/docs/.
see demo - http://codepen.io/vsync/pen/waKju?editors=011
javascript
/**
* Slider - loops over images
* SEP 2014
* By - Yair Even-Or
*/
var Slider = function(elm, prev, next){
var that = this;
this.locked = false;
this.slider = elm;
this.children = this.slider.children;
this.itemWidth = this.children[0].clientWidth;
this.preloadImages();
next && next.addEventListener('click', function(){ that.move('next') });
prev && prev.addEventListener('click', function(){ that.move('prev') });
}
Slider.prototype = {
move : function(dir){
var that = this,
itemToMove;
if( this.locked ){
this.locked.removeAttribute('style');
this.slider.appendChild(this.locked);
clearTimeout(this.timer);
moveToEnd();
}
// do nothing if there are no items
if( this.children.length < 2 )
return false;
itemToMove = this.children[0];
this.locked = itemToMove;
if( dir == 'next' )
itemToMove.style.marginLeft = -this.itemWidth + 'px';
else{
itemToMove = this.children[this.children.length-1];
itemToMove.style.marginLeft = -this.itemWidth + 'px';
this.slider.insertBefore(itemToMove, this.children[0]);
setTimeout(function(){
itemToMove.removeAttribute('style');
},50);
this.preloadImages();
this.locked = false;
}
// move the child to the end of the items' list
if( dir == 'next' )
this.timer = setTimeout(moveToEnd, 420);
function moveToEnd(el){
itemToMove = el || itemToMove;
if( !itemToMove ) return;
itemToMove.removeAttribute('style');
that.slider.appendChild(itemToMove);
that.locked = false;
that.preloadImages();
}
},
preloadImages : function(){
this.lazyload(this.children[1].getElementsByTagName('img')[0] );
this.lazyload(this.children[this.children.length-1].getElementsByTagName('img')[0] );
},
// lazy load image
lazyload : function(img){
var lazy = img.getAttribute('data-src');
if( lazy ){
img.src = lazy;
img.removeAttribute('data-src');
}
}
}
// HOW TO USE /////////////////
var sliderElm = document.querySelector('.content'),
next = document.querySelector('.next'),
prev = document.querySelector('.prev'),
slider = new Slider(sliderElm, prev, next);
HTML (JADE syntax)
.slider
a.arrow.next
a.arrow.prev
ul.content
li
img(src='image1.jpg')
li
img(src='image2.jpg')
li
img(src='image3.jpg')
li
img(src='image4.jpg')