Adding an onclick function to go to url in JavaScript?
Try Also use if you want to open in a new window.
jquery
How to send multiple data fields via Ajax?
The correct syntax is: As specified here: http://api.jquery.com/jQuery.ajax/ So if that doesn’t work, I would alert those variables to make sure they have values.
Uncaught TypeError: Cannot read property ‘length’ of undefined
You are not passing the variable correctly. One fast solution is to make a global variable like this:
jQuery Ajax error handling, show custom exception messages
Is there some way I can show custom exception messages as an alert in my jQuery AJAX error message? For example, if I want to throw an exception on the server side via Struts by throw new ApplicationException(“User name already exists”);, I want to catch this message (‘user name already exists’) in the jQuery AJAX error message. On … Read more
Adding placeholder attribute using Jquery
You just need this: classList is used for manipulating classes and not attributes.
Change Placeholder Text using jQuery
Copy and paste this code in your js file, this will change all placeholder text from whole site.
check / uncheck checkbox using jquery?
For jQuery 1.6+ : .attr() is deprecated for properties; use the new .prop() function instead as: For jQuery < 1.6: To check/uncheck a checkbox, use the attribute checked and alter that. With jQuery you can do: Cause you know, in HTML, it would look something like: However, you cannot trust the .attr() method to get the value of the checkbox … Read more
How to find the sum of an array of numbers
Recommended (reduce with default value) Array.prototype.reduce can be used to iterate through the array, adding the current element value to the sum of the previous element values. Run code snippetExpand snippet Without default value You get a TypeError Run code snippetExpand snippet Prior to ES6’s arrow functions Run code snippetExpand snippet Non-number inputs If non-numbers are … Read more
Nested JSON objects – do I have to use arrays for everything?
You don’t need to use arrays. JSON values can be arrays, objects, or primitives (numbers or strings). You can write JSON like this: You can use it like this:
Setting “checked” for a checkbox with jQuery
Modern jQuery Use .prop(): DOM API If you’re working with just one element, you can always just access the underlying HTMLInputElement and modify its .checked property: The benefit to using the .prop() and .attr() methods instead of this is that they will operate on all matched elements. jQuery 1.5.x and below The .prop() method is not available, so you need to use .attr(). Note that this is the … Read more