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html-to-img's Introduction

html-to-img

GitHub file size in bytes GitHub package.json version

使用

npm i html-to-img -S

import html2img from 'html-to-img'

html2img(
    document.getElementById('demo'),
).then(
    src => console.log(src)
)

Vue 中使用

import htmlToImg, { vueComponentToHtml } from 'html-to-img'
import Vue from 'vue'

const WordsPoster = {
    render(h) {
        return h('div')
    }
}

htmlToImg(
    vueComponentToHtml(WordsPoster, Vue)
).then(
    src => console.log(src)
)

当然这样直接转换 img 不容易调试,所以需要使用第二个参数 options,options 包含如下的参数

参数名称 用途 默认值
debug 用来调试,开启之后不会转成图片 false
scale 缩放比例,比例越高清晰度越高,当然图片也就越大 2
base64 将dom中的图片地址都转成base64 false

为什么会有 base64 这个选项呢?

真机上显示的时候,有时会因为图片缓存以及跨域的问题,导致绘制图片失败,所以需要转成 base64

tips

  1. 不要使用背景图片,背景图片会很模糊,并且不会被转成 base64
  2. dom 元素需要显示的设置宽高

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