I have seen many ways to validate these dates, but I don't actually know which is the best way to validating the two text boxes.
Once I click on my submit button, the onsubmit = check() will check the dates if they are correct or not.
The best way to handle validation in Javascript is with regular expressions. Check out examples here
If you need to manipulate the date, i.e. if you want to convert it through code then you need to split the string up using the Split function and then combine it in the correct order again. Check out example here.
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Is there any way to create prompt with two input fields?
(4 answers)
Closed 3 years ago.
I want to take multiple user inputs from user in a single prompt box. How can this be possible?
In not possible in native browser behavior.
You need use custom library for creating modal element. For example you can use jQuery UI
The only way to do it would be to have a common separator that you split on. For instance, for the delimiter ~, you could do this:
const inputs = prompt("Enter your inputs separated by a tilde ~").split("~");
console.log(inputs);
This is not a good way to obtain multiple inputs due to the fact that the user may make a mistake when entering their data. A much better way would be to make your own custom modal with multiple areas to input data, or simply do use many sequential prompts. But no, aside from this method, there's no way to get multiple user inputs in a single, browser default prompt box.
It is only possible by asking user to provide multiple data with delimeters e.g.
input1 input2
input1,input2
and you can describe the format in prompt box message.
I'm working on a html form, and I like to know if there is a tool or way to restrict the user to some rules in inputs, i.e.:
-Don't allow the user to put more than 2 digits after the dot
-Don't allow the user to put more than 1 dot
I was thinking on regular expressions but how to apply that live.
Thank you.
You can run a form validation process with JavaScript. Use HTML DOM to get all the input fields, then use string manipulation to search it's "value" attribute for characters.
document.getElementById() and similar methods can retrieve different elements on the page. After the getElement method you used to find the input field, type ".value" and then it should return whatever is in that field. Then run that through something like data.includes() or similar to check for certain characters.
I am trying to write a code in which we have to find all the synonyms of the word.
The word has to be written in an input type of a form and on submit lists all the synonyms.
To do that, you would need a thesaurus. The best bet is to use an API to retrieve that somehow. For instance, you could bind the form's submit event to a function which fetches data from the Big Huge Thesaurus and formats that data back into the page.
From your question i understand that you need to display synonyms for a word. for that you need to hit a Dictionary API.
So can you try below link
https://www.wordsapi.com/mashape/words/searchWord?when=2018-02-08T04:12:05.603Z&encrypted=8cfdb282e722919bea9907bfeb58bfbbaeb0280936ff94b8
in place of searchWord you need to put your word.
Then it will return a JSON with meaning and synonyms of that word.
You can refer this link also.
I have a more or less complex SPA with ~40 text input fields. Those input elements are not bundled by a <form>, but they are separated into categories. If a user submits, i would like to trigger a validation function.
My first approach was writing two directives, one for string input and one for numeric values, which would add an attribute to every invalid element, then using a validate() function which would look up every input field in order to check whether or not it has said attribute.
I stumbled over multiple issues, including the fact that this was a jQuery like solution to the problem.
How could i accomplish this in a more convenient way?
One of the ways I have been handling form validation when things are not inside of a form is by using ng-pattern. With ng-pattern you can either do direct regex there, or link to an expression to run a set of validations for you.
It would look something like this.
<input type="text" ng-pattern="Put your Regex Here or an Expression">
The angular docs for ng-pattern are pretty sparse, so good luck.
This approach may not be what you are looking for since it evaluates only one input at a time, but I hope this helps.
for example, I want the textfield input number only. my idea is when the user typing, it will call a javascript to check whether it is valid, if it is not valid, I delete the text which is just entered. But I think it is very complex to do so. Is there any simple way to do so?
Put a validation on submit.
JQuery Masking could be a good choice: http://digitalbush.com/projects/masked-input-plugin/
The script to do this is here. It's a pretty common requirement.
http://javascript.internet.com/forms/validate-numeric-only.html
I think, like o.k.w said, jQuery Masking would be a good choice because of 2 things:
jQuery is solid and fast
Masking is more user friendly than just deleting user input on the fly without any notification. Masking gives them a graphical reference of what type of input is expected and what the input might look like.