Category: JavaScript Answers

Sometimes, we want to change a Switchery checkbox state with JavaScript.

In this article, we’ll look at how to change a Switchery checkbox state with JavaScript.

Change a Switchery checkbox state with JavaScript

To change a Switchery checkbox state with JavaScript, we just call the click method on the Switchery checkbox element.

For instance, we write:

<script src="https://cdnjs.cloudflare.com/ajax/libs/switchery/0.8.2/switchery.min.js"></script>

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/switchery/0.8.2/switchery.css" />

<input class='switchery' type='checkbox'>

to add the Switchery script tag and CSS file link tag.

Then we add the checkbox input element.

Next, we write:

document.querySelector('.switchery').click();

to select the Switchery checkbox with:

document.querySelector('.switchery')

Then we call click on that to click on the checkbox to make it checked.

Conclusion

To change a Switchery checkbox state with JavaScript, we just call the click method on the Switchery checkbox element.

Sometimes, we want to stop an animated gif from looping with JavaScript.

In this article, we’ll look at how to stop an animated gif from looping with JavaScript.

Stop an Animated GIF from Looping with JavaScript

To stop an animated gif from looping with JavaScript, we can copy the animated GIF content to a canvas element.

Then we hide the original img element with the animated GIF when the animation is over.

For instance, we write:

<canvas style='width: 300px; height: 100px'></canvas>

<img src="https://i.stack.imgur.com/PUSIu.gif">

to add the canvas and the img element.

Then we write:

const canvas = document.querySelector('canvas')
const {
  width,
  height
} = canvas
const img = document.querySelector('img')

setTimeout(() => {
  canvas.getContext('2d').drawImage(img, 0, 0, width, height);
  img.style.visibility = 'hidden'
}, 10000);

to select the canvas with document.querySelector.

Then we get the width and height of the canvas.

Next, we select the img element with document.querySelector.

And then we call setTimeout with a callback that gets the canvas context and calls the drawImage method to draw the content of the img element into the canvas.

The first argument is the img element.

The 2nd and 3rd arguments are the x and y coordinates of the top left corner.

And the last 2 arguments are the width and height.

Finally, we set the visibility CSS property of the img element to 'hidden' to hide it.

And we do that after 10 seconds as specified by the 2nd argument of setTimeout.

Conclusion

To stop an animated gif from looping with JavaScript, we can copy the animated GIF content to a canvas element.

Then we hide the original img element with the animated GIF when the animation is over.

Sometimes, we want to disable hover with HighCharts.

In this article, we’ll look at how to disable hover with HighCharts.

Disable Hover with HighCharts

To disable hover with HighCharts, we can set the tooltip.enabled property to false.

For instance, we write:

<script src="https://cdnjs.cloudflare.com/ajax/libs/highcharts/9.2.2/highcharts.js"></script>

<div id="container" style="height: 400px"></div>

to add the script tag and the div chart container.

Then we write:

const chart = new Highcharts.Chart({
  colors: ['#0072BC', '#BFDAFF', '#DDDF00', '#24CBE5', '#64E572', '#FF9655', '#FFF263', '#6AF9C4'],
  credits: {
    enabled: false
  },
  tooltip: {
    enabled: false
  },
  chart: {
    renderTo: 'container',
    backgroundColor: 'rgba(255, 255, 255, 0.1)',
    type: 'pie',
    margin: [0, 0, 0, 0],
    spacingTop: 0,
    spacingBottom: 0,
    spacingLeft: 0,
    spacingRight: 0
  },
  title: {
    text: null
  },
  plotOptions: {
    pie: {
      allowPointSelect: false,
      size: '100%',
      dataLabels: {
        enabled: false
      }
    }
  },
  series: [{
    showInLegend: false,
    type: 'pie',
    name: 'Pie Chart',
    data: [
      ['Mobile', 65],
      ['Other', 35] 
    ]
  }]
});

We add the colors property for the chart.

We set tooltip.enabled to false to hide the tooltips.

And we set the chart.renderTo property to the ID for the chart container element.

We also put the background color, spacing, and margin styles in the same object.

title.text sets the title text.

plotOptions.pie sets the options for the pie chart, including the size and label.

series sets the setting for the chart data.

data has the chart data. type sets the chart type to render.

showInLegend lets us show or hide the legend.

Conclusion

To disable hover with HighCharts, we can set the tooltip.enabled property to false.

Sometimes, we want to animate margin top CSS property with jQuery.

In this article, we’ll look at how to animate margin top CSS property with jQuery.

Animate the Margin Top CSS Property with jQuery

To animate margin top CSS property with jQuery, we can call the animate method on the selected elements

For instance, we write:

<div class='item'>
  <div class='info'>
    item info
  </div>
</div>

to add the div we want to animate the margin-top property for.

Then we write:

$(".item").mouseover(() => {
  $('.info').animate({
    marginTop: '-50px',
    opacity: 0.5
  }, 1000);
});

to call mouseover on the outer div with a callback that does the animation on the inner div.

To do the animation on the inner div, we select the inner div and then call animate on it.

We call animate with an object that sets the marginTop to '-50px' to move the inner div 50px up.

Also, we set the opacity to 0.5 to reduce the opacity of the inner div.

And the animation runs for 1 second as specified by the 2nd argument of animate.

Now when we put our mouse over the divs, we should see the text move up.

Conclusion

To animate margin top CSS property with jQuery, we can call the animate method on the selected elements