jQuery addClass example

Change class name on click in jQuery

by rakesh makluri

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

const first = [{text: 'sometext1', applicable: true}, {text: 'sometext2', applicable: false}, {text: 'sometext3', applicable: true}];
const second = [{text: 'sometext1', applicable: true}, {text: 'sometext2', applicable: true}];
first.forEach(item => {
    const index = second.findIndex(st => st.text === item.text);
    if(index < 0) {
        second.push(item);
    }
})

console.log(second)