https://www.fukoku-life.co.jp/assets/js/base.js

1// UA判定
2var _ua = (function(u){
3  return {
4    Tablet:(u.indexOf("windows") != -1 && u.indexOf("touch") != -1 && u.indexOf("tablet pc") == -1)
5      || u.indexOf("ipad") != -1
6      || (u.indexOf("android") != -1 && u.indexOf("mobile") == -1)
7      || (u.indexOf("firefox") != -1 && u.indexOf("tablet") != -1)
8      || u.indexOf("kindle") != -1
9      || u.indexOf("silk") != -1
10      || u.indexOf("playbook") != -1,
11    Mobile:(u.indexOf("windows") != -1 && u.indexOf("phone") != -1)
12      || u.indexOf("iphone") != -1
13      || u.indexOf("ipod") != -1
14      || (u.indexOf("android") != -1 && u.indexOf("mobile") != -1)
15      || (u.indexOf("firefox") != -1 && u.indexOf("mobile") != -1)
16      || u.indexOf("blackberry") != -1
17  }
18})(window.navigator.userAgent.toLowerCase());
19
20
21// 375px未満の時は、375基準で縮小させる
22!function() {
23  var viewport = document.querySelector('meta[name="viewport"]');
24  function adjustViewport () {
25    var value = window.outerWidth >= 375 ? 'width=device-width,initial-scale=1' : 'width=375';
26    if (viewport.getAttribute('content') !== value) {
27      viewport.setAttribute('content', value);
28    }
29  }
30  addEventListener('resize', adjustViewport, false);
31  adjustViewport();
32}();
33
34// SPサイズかどうか
35function is_sp_width() {
36  return window.innerWidth < 768;
37}