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title: Events type: guide order: 2.3 version: 0.10

Events

Weex allow <template> to bind event type and handler on an Element. The attribute name is the event type with prefix on... and the attribute value is handler method name. For instance: onclick="handler". e.g.

<template>
  <image onclick="handler" ...></image>
</template>

<script>
  module.exports = {
    methods: {
      handler: function (e) {
        // TODO
      }
    }
  }
</script>

When user clicks the image , handler function which defined in <script> code will be executed.

Inline Handler

Beside a handler method name, you can also call a handler inline.

e.g.

<template>
  <image onclick="handler('arg1', $event)" ...></image>
</template>

<script>
  module.exports = {
    methods: {
      handler: function (arg1, e) {
        // TODO
      }
    }
  }
</script>

Event Object

When an event handler called, it will receive an event object as the first argument. Every event object will contains following properties.

• type: event name, eg: click
• target: target Element of the event
• timestamp: time stamp that event triggered

Next, let's have a look at display logic control.