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JavaScript Answers

How to get time zone from user’s browser using moment-timezone and JavaScript?

Sometimes, we want to get time zone from user’s browser using moment-timezone and JavaScript.

In this article, we’ll look at how to get time zone from user’s browser using moment-timezone and JavaScript.

How to get time zone from user’s browser using moment-timezone and JavaScript?

To get time zone from user’s browser using moment-timezone and JavaScript, we call the moment.tz.guess method.

For instance, we write

const tz = moment.tz.guess();

to call moment.tz.guess to return the time zone of the device the user’s browser is running on as a string.

Conclusion

To get time zone from user’s browser using moment-timezone and JavaScript, we call the moment.tz.guess method.

Categories
JavaScript Answers

How to apply trim function to each string in an array with JavaScript?

Sometimes, we want to apply trim function to each string in an array with JavaScript.

In this article, we’ll look at how to apply trim function to each string in an array with JavaScript.

How to apply trim function to each string in an array with JavaScript?

To apply trim function to each string in an array with JavaScript, we can use the array map method.

For instance, we write

const trimmedArr = arr.map((s) => s.trim());

to call arr.map with a callback that returns the trimmed version of each string we get from calling s.trim.

And then we assign the returned array to trimmedArr.

Conclusion

To apply trim function to each string in an array with JavaScript, we can use the array map method.

Categories
JavaScript Answers

How to create unique ID with JavaScript?

Sometimes, we want to create unique ID with JavaScript.

In this article, we’ll look at how to create unique ID with JavaScript.

How to create unique ID with JavaScript?

To create unique ID with JavaScript, we can use the Math.random method.

For instance, we write

const id = Math.random().toString(16).slice(2);

to call the Math.random method to return a random number between 0 and 1.

Then we call toString with 16 on the returned number to convert it to a hex string.

Next, we call slice with 2 to return the string from index 2 to the end of it.

Conclusion

To create unique ID with JavaScript, we can use the Math.random method.

Categories
HTML

How to prevent user from typing in text field without disabling the field with HTML?

Sometimes, we want to prevent user from typing in text field without disabling the field with HTML.

In this article, we’ll look at how to prevent user from typing in text field without disabling the field with HTML.

How to prevent user from typing in text field without disabling the field with HTML?

To prevent user from typing in text field without disabling the field with HTML, we can add the readonly attribute to the input.

For instance, we write

<input readonly type="text" />

to stop users from enter text into the input without making it look disabled.

Conclusion

To prevent user from typing in text field without disabling the field with HTML, we can add the readonly attribute to the input.

Categories
HTML

How to eliminate 300ms delay on click events in mobile Safari?

Sometimes, we want to eliminate 300ms delay on click events in mobile Safari.

In this article, we’ll look at how to eliminate 300ms delay on click events in mobile Safari.

How to eliminate 300ms delay on click events in mobile Safari?

To eliminate 300ms delay on click events in mobile Safari, we add a meta element to set the viewport.

For instance, we write

<meta name="viewport" content="width=device-width, user-scalable=no" />

to add a meta element with name attribute set to viewport to eliminate the 300ms delay on click events in Mobile Safari.

Conclusion

To eliminate 300ms delay on click events in mobile Safari, we add a meta element to set the viewport.

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