jQuery addClass example

Change class name on click in jQuery

by Shane Chambers

HTML

<div id="banner-message">
  
  <button id="button1">Starts With</button>
 <input id="temp" value="hi"/>
 
 <button id="button2">Includes</button>
 <input id="temp2" value="hi"/>
</div>

CSS

body {
  background: #20262E;
  padding: 20px;
  font-family: Helvetica;
}

#banner-message {
  background: #fff;
  border-radius: 4px;
  padding: 20px;
  font-size: 25px;
  text-align: center;
  transition: all 0.2s;
  margin: 0 auto;
  width: 300px;
}

button {
  background: #0084ff;
  border: none;
  border-radius: 5px;
  padding: 8px 14px;
  font-size: 15px;
  color: #fff;
}

#banner-message.alt {
  background: #0084ff;
  color: #fff;
  margin-top: 40px;
  width: 200px;
}

#banner-message.alt button {
  background: #fff;
  color: #000;
}

JavaScript

// find elements
var banner = $("#banner-message")
var button = $("#button1")
var button2 = $("#button2")

// handle click and add class
button.on("click", function(){
 $("#temp").val(getParamStartsWith("?scoBrandid=2&some=2", "cobrandid"));
})

// handle click and add class
button2.on("click", function(){
 $("#temp2").val(getParamIncludes("?firstcoBrandid=2&secondcobrandid=4&some3", "cobrandid"));
})

function getParamStartsWith(url, paramName){
	var paramValue = "";
	url.replace("?","").split("&").forEach(function(param) {
  	if(param.toLowerCase().startsWith(paramName.toLowerCase()+"=")){
    	paramValue = param.split("=")[1];
    }
  });
  return paramValue;
}

function getParamIncludes(url, paramName){
	var paramValue = "";
	url.replace("?","").split("&").forEach(function(param) {
  	if(param.toLowerCase().includes(paramName.toLowerCase()+"=")){
    	paramValue = param.split("=")[1];
    }
  });
  return paramValue;
}

$(function(){
	
})