Category: JavaScript

Sometimes, we want to fix "google is not defined" when using Google Maps V3 in Firefox remotely with JavaScript.

In this article, we’ll look at how to fix "google is not defined" when using Google Maps V3 in Firefox remotely with JavaScript.

How to fix "google is not defined" when using Google Maps V3 in Firefox remotely with JavaScript?

To fix "google is not defined" when using Google Maps V3 in Firefox remotely with JavaScript, we add the scripts for the Google Maps API.

For instance, we write

<script
  src="https://maps.googleapis.com/maps/api/js?sensor=false"
  type="text/javascript"
></script>

to add the Google Maps API script into our code with a script tag.

Conclusion

To fix "google is not defined" when using Google Maps V3 in Firefox remotely with JavaScript, we add the scripts for the Google Maps API.

Sometimes, we want to get files from file input with JavaScript.

In this article, we’ll look at how to get files from file input with JavaScript.

How to get files from file input with JavaScript?

To get files from file input with JavaScript, we use the file input’s files property.

For instance, we write

inputElement.onchange = (event) => {
  const fileList = inputElement.files;
  //...
};

to set the inputElement.onchange property to a function that’s called when the file selection changes.

In it, we get the files selected from the inputElement.files property as an iterable files list object.

Conclusion

To get files from file input with JavaScript, we use the file input’s files property.

To set Highcharts chart maximum yAxis value with JavaScript, we set the yAxis.max property.

For instance, we write

const chart = new Highcharts.Chart({
  chart: {
    renderTo: "container",
  },
  xAxis: {
    categories: [
      "Jan",
      "Feb",
      "Mar",
      "Apr",
      "May",
      "Jun",
      "Jul",
      "Aug",
      "Sep",
      "Oct",
      "Nov",
      "Dec",
    ],
  },
  yAxis: {
    max: 200,
    min: -200,
  },
  series: [
    {
      data: [2, 4, 5, 6, 7, 8, 9, 0, 21, 3, 3, 4],
    },
  ],
});

to set the yAxis.max property to set the max value of the y-axis.

Conclusion

To set Highcharts chart maximum yAxis value with JavaScript, we set the yAxis.max property.

Sometimes, we want to save base64 string as PDF at client side with JavaScript.

In this article, we’ll look at how to save base64 string as PDF at client side with JavaScript.

How to save base64 string as PDF at client side with JavaScript?

To save base64 string as PDF at client side with JavaScript, we create a link.

For instance, we write

const downloadPDF = (pdf) => {
  const linkSource = `data:application/pdf;base64,${pdf}`;
  const downloadLink = document.createElement("a");
  const fileName = "abc.pdf";
  downloadLink.href = linkSource;
  downloadLink.download = fileName;
  downloadLink.click();
};

to define the downloadPDF function.

In it, we create a link with createElement.

Then we set its href property to the path with the PDF.

Next, we set the download property to the name of the downloaded file.

Then we call click to download the file.

Conclusion

To save base64 string as PDF at client side with JavaScript, we create a link.

Sometimes, we want to disable a Link if it’s active with React Router.

In this article, we’ll look at how to disable a Link if it’s active with React Router.

How to disable a Link if it’s active with React Router?

To disable a Link if it’s active with React Router, we set the to prop.

For instance, we write

<Link to={isActive ? "/link-to-route" : "#"} />;

to set the to prop to "#" if isActive is true.

Otherwise, we set it to "/link-to-route".

Conclusion

To disable a Link if it’s active with React Router, we set the to prop.