javascript Archives - Page 251 of 258

Using async/await with a forEach loop

Are there any issues with using async/await in a forEach loop? I’m trying to loop through an array of files and await on ...

April 10, 2022
0 Comments

Check if a variable is a string in JavaScript

How can I determine whether a variable is a string or something else in JavaScript? 2 27 This is what works for me: ...

April 10, 2022
0 Comments

Generate random string/characters in JavaScript

I want a 5 character string composed of characters picked randomly from the set...

April 10, 2022
0 Comments

.prop() vs .attr()

So jQuery 1.6 has the new function prop(). $(selector).click(function(){ //instead of: this.getAttribute('style'); //do i use: $(this).prop('style'); //or: $(this).attr('style'); }) or in this case ...

April 10, 2022
0 Comments

Get selected text from a drop-down list (select box) using jQuery

How can I get the selected text (not the selected value) from a drop-down list in jQuery? 3 35

April 10, 2022
0 Comments

Disable/enable an input with jQuery?

$input.disabled = true; or $input.disabled = "disabled"; Which is the standard way? And, conversely, how do you enable a disabled input? 1 19 ...

April 10, 2022
0 Comments

How can I determine if a variable is ‘undefined’ or ‘null’?

How do I determine if variable is undefined or null? My code is as follows: var EmpName = $("div#esd-names div#name").attr('class'); if(EmpName == 'undefined'){ ...

April 10, 2022
0 Comments

Compare two dates with JavaScript

Can someone suggest a way to compare the values of two dates greater than, less than, and not in the past using JavaScript? ...

April 10, 2022
0 Comments

Validate decimal numbers in JavaScript – IsNumeric()

What’s the cleanest, most effective way to validate decimal numbers in JavaScript? Bonus points for: Clarity. Solution should be clean and simple. Cross-platform. ...

April 10, 2022
0 Comments

Set a default parameter value for a JavaScript function

I would like a JavaScript function to have optional arguments which I set a default on, which get used if the value isn’t ...

April 10, 2022
0 Comments