JSFiddle - React, Tailwind, and code Playground

Vue Set sub param

by Christopher O

HTML

<div id="app">
  <strong>Output:</strong> {{ theForm.i }}
</div>

CSS

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

#app {
  background: #fff;
  border-radius: 4px;
  padding: 20px;
  transition: all 0.2s;
}

li {
  margin: 8px 0;
}

h2 {
  font-weight: bold;
  margin-bottom: 15px;
}

del {
  color: rgba(0, 0, 0, 0.3);
}

Vue

console.clear();

new Vue({
  el: "#app",
  data: {
    theForm: {}
  },
  created: function() {
  	// works
  	this.theForm.i = 'Works 1';
    
    // Works
  	this.theForm["i"] = 'Works 2';
    
    // ReferenceError: i is not defined
    //Vue.set(this.theForm, i, 'Works 3');
  }
})