JS笔记

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  if (element.requestFullscreen) {
    element.requestFullscreen();
  } else if (element.webkitRequestFullscreen) {
    // ios safari
    element.webkitRequestFullscreen();
  }

js URL转译方法 encodeURIComponent()

  function addQueryParam(url: string, key: string, value: string) {
    const urlObj = new URL(url)
    const params = new URLSearchParams(urlObj.search)
    if (params.has(key)) {
      params.set(key, value)
    } else {
      params.append(key, value)
    }
    urlObj.search = params.toString()
    return urlObj.href
  }

const toThousands = (num: number) => String(num).replace(/\B(?=(\d{3})+(?!\d))/g, ',')

console.info(
    '%cThis is My stylish %cThis is My stylish',
    'color: yellow; background-color: #409eff;padding: 4px 12px;border-radius: 4px 0 0 4px;font-weight: 1000;',
    'color: black; background-color: #fff;padding: 4px 12px;border-radius: 0 4px 4px 0;',
)
// 了解一下console

// 创建blob对象
const text = 'This is a sample text file.'
const blob = new Blob([text], { type: 'text/plain' })
// type 值 https://developer.mozilla.org/zh-CN/docs/Web/HTTP/MIME_types/Common_types

// IIFE （Immediately-Invoked Function Expression）立即执行函数