Web developer specializing in React, Vue, and front end development.
Sometimes, we want to fix fetch is undefined with JavaScript.
In this article, we’ll look at how to fix fetch is undefined with JavaScript.
To fix fetch is undefined with JavaScript, we add the isomorphic-fetch package.
To install it, we run
npm install --save isomorphic-fetch es6-promise
Then we import it with
import "isomorphic-fetch"
To fix fetch is undefined with JavaScript, we add the isomorphic-fetch package.
Sometimes, we want to set the iframe content of a React component.
In this article, we’ll look at how to set the iframe content of a React component.
To set the iframe content of a React component, we use the createPortal function.
For instance, we write
import React, { useState } from "react";
import { createPortal } from "react-dom";
export const IFrame = ({ children, ...props }) => {
const [contentRef, setContentRef] = useState(null);
const mountNode = contentRef?.contentWindow?.document?.body;
return (
<iframe {...props} ref={setContentRef}>
{mountNode && createPortal(children, mountNode)}
</iframe>
);
};
to assign the setContentRef ref to the iframe.
Then we call createPortal with children and the iframe’s body element with contentRef?.contentWindow?.document?.body to populate it.
To set the iframe content of a React component, we use the createPortal function.
Sometimes, we want to set the Material date picker date format with Angular and TypeScript.
In this article, we’ll look at how to set the Material date picker date format with Angular and TypeScript.
To set the Material date picker date format with Angular and TypeScript, we create a custom date adapter.
For instance, we write
const MY_DATE_FORMATS = {
parse: {
dateInput: { month: "short", year: "numeric", day: "numeric" },
},
display: {
dateInput: "input",
monthYearLabel: { year: "numeric", month: "short" },
dateA11yLabel: { year: "numeric", month: "long", day: "numeric" },
monthYearA11yLabel: { year: "numeric", month: "long" },
},
};
to define a constant with the date formats.
Then we write
export class MyDateAdapter extends NativeDateAdapter {
format(date: Date, displayFormat: Object): string {
if (displayFormat === "input") {
let day = date.getDate();
let month = date.getMonth() + 1;
let year = date.getFullYear();
return this._to2digit(day) + "/" + this._to2digit(month) + "/" + year;
} else {
return date.toDateString();
}
}
private _to2digit(n: number) {
return ("00" + n).slice(-2);
}
}
to return the date string in the format we want.
Then we write
//...
@NgModule({
//...
providers: [
{ provide: DateAdapter, useClass: MyDateAdapter },
{ provide: MD_DATE_FORMATS, useValue: MY_DATE_FORMATS },
],
//...
})
export class AppModule {}
to add the adapter class and the object to our module.
To set the Material date picker date format with Angular and TypeScript, we create a custom date adapter.
Sometimes, we want to fix geocoding from address to latitude and longitude numbers not working with JavaScript.
In this article, we’ll look at how to fix geocoding from address to latitude and longitude numbers not working with JavaScript.
To fix geocoding from address to latitude and longitude numbers not working with JavaScript, we use the Google Maps API.
For instance, we write
<script
type="text/javascript"
src="http://maps.google.com/maps/api/js?sensor=false"
></script>
to add the Google Maps API script.
Then we write
const geocoder = new google.maps.Geocoder();
const address = "new york";
geocoder.geocode({ address }, (results, status) => {
if (status === google.maps.GeocoderStatus.OK) {
const latitude = results[0].geometry.location.lat();
const longitude = results[0].geometry.location.lng();
console.log(latitude);
}
});
to call geocode with the address to geocode the address and get the resulting latitude and longitude with lat and lng respectively.
To fix geocoding from address to latitude and longitude numbers not working with JavaScript, we use the Google Maps API.
Sometimes, we want to set pointer-events with JavaScript.
In this article, we’ll look at how to set pointer-events with JavaScript.
To set pointer-events with JavaScript, we set the the style property value.
For instance, we write
document.getElementById("div").style["pointer-events"] = "auto";
to select the element with getElementById.
Then we set the style["pointer-events"] property toi set the pointer-events CSS property to 'auto'.
To set pointer-events with JavaScript, we set the the style property value.