Author: John Au-Yeung

Web developer specializing in React, Vue, and front end development.

Categories
HTML

How to toggle HTML radio button by clicking its label?

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Sometimes, we want to toggle HTML radio button by clicking its label.

In this article, we’ll look at how to toggle HTML radio button by clicking its label.

How to toggle HTML radio button by clicking its label?

To toggle HTML radio button by clicking its label, we can put the radio button inside the label.

For instance, we write

<label>
  <input type="radio" name="mode" value="create" />
  <i>create table</i>
</label>

to put the radio button input inside the label element.

Then we can click on the label to toggle the radio button.

Conclusion

To toggle HTML radio button by clicking its label, we can put the radio button inside the label.

Categories
JavaScript Answers

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

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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?

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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?

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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?

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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.