v0.4

0.4

New text-stamps syntax

Old (v0.3.3):

<template>
  [[::this.greeting]]
</template>

<script>
class MyComponent extends Custom.element {
  static get observedProperties() {
    return ['greeting', 'userName']
  }
  // ...
  set userName(value) {
    this.greeting = value.trim() 
      ? 'Hello, ' + value
      : ''
  }
}
// ...
</script>

New (v0.4):

<template>
  ((this.userName ? 'Hello, ' + this.userName : ''))
</template>

(...)

• You can run expression code here
• Became faster
• Handling all errors without blocking thread

Changes in attribute binding API

Old (v0.3.3):

<input type="text" value="::this.userName" oninput="::this.userName = this.value">

New (v0.4):

<input type="text" ::value="this.userName" oninput="this.userName = value">

Computable attributes

In v0.3 all attributes which contains '::this', automaticaly runs value like expressions.
In v0.4 to make the attribute computable, need add :: prefix to attribute name.