How to I add 1 every time I tap this button in HTML/js

Question

0.00/5 (No votes)

See more:

HTML

<input type="button" class="btn btn-primary btn-sm" id="testbtn" value="LIKE">
<script>
        var buttonclicked;
    $("#testbtn").click(function(){
    if( buttonclicked!= true) {
        buttonclicked= true;
        if (post.post_variable == "NULL")
            post.post_variable = 0;
        post.post_variable = post.post_variable + 1;
        alert("Button is clicked for first time");
    }else{
        alert("Button isn't clicked for first time");
    }
    });
  </script>

this the html and js code for that and i want to add 1 in post.post_variable variable which is a variable in my database model.

Python

class Post(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    content = db.Column(db.Text, nullable = False)
    post_variable = db.Column(db.Integer, default = "NULL")

   

plz help me out i am stuck in this.

What I have tried:

I have tried the above code but its not working.

Posted 7-Jul-20 20:22pm

Member 14883710

Updated 7-Jul-20 21:14pm

Add a Solution

2 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Richard MacCutchan · Answer 1 · 2020-07-07T21:12:00

You never increment the counter if buttonclicked is true. Try modifying the code thus:

JavaScript

if( buttonclicked!= true) {
    buttonclicked= true;
    if (post.post_variable == "NULL")
        post.post_variable = 0;
    alert("Button is clicked for first time");
}else{
    alert("Button isn't clicked for first time");
}
post.post_variable = post.post_variable + 1; // always increment the counter

Andre Oosthuizen · Answer 2 · 2020-07-07T21:14:00

You can try the followin -

HTML

HTML

<pre><input type="button" class="btn btn-primary btn-sm" id="testbtn" value="LIKE">

<div id="output">0</div>

Java

$(function() {
  $('#testbtn').click(function() {
    $('#output').html(function(i, val) {
      return val * 1 + 1;
    });
  });
});

Just add your other required code or if blocks as required.

How to I add 1 every time I tap this button in HTML/js

2 solutions

Solution 1

Solution 2

Add your solution here

Preview 0