小编bra*_*r19的帖子

在我的应用程序中,我尝试显示base64图像...

例如我有:

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在网址上: {{user.Photo}}

在ng-repeat循环中我有:

<img data-ng-src="data:image/png;base64,{{user.Photo}}" data-err-src="images/png/avatar.png"/>

但结果我看到:

data-ng-src="data:image/png;base64,http://location.com/files/idididididid"

但为什么？如何显示我的图像数据？

在控制器的范围内,我有类似的东西:

$scope.card = {};

在视图中,我必须检查我的对象是否仍然是空文字{},或者它是否包含某些字段中的某些数据.

我试过这个:

ng-show="angular.equals({}, card)"

和

ng-show="!angular.equals({}, card)"

但它不起作用.

有没有更好的方法？如何检查对象是否为空或是否包含某些字段？

在我的应用程序中,我使用拦截器来捕获所有http响应错误,例如:

var response = function(response) {
  if(response.config.url.indexOf('?page=') > -1) {
    skipException = true;
  }
  return response;
}

var responseError = function(rejection) {
  if (rejection.status === 401 || rejection.status === 403) {
    /**/
  }
  else if (rejection.status >= 500 || rejection.status === 0) {
    /**/
  }
  else if (rejection.status === 404 && !skipException) {
    /**/
  }
  else if (rejection.status === 404 && skipException) {
    /**/
  }
  else{
    /**/
  }
  return $q.reject(rejection);
};

当我去我的控制器时(当我的getArticles方法返回一些数据时,而不是404 - 当文章数组为空时)一切正常:404 skipException == true被捕获. …

我有一个问题...

如果您想要条件样式:您必须使用ng-class或ng-style构造.

但...

例如:我是管理员,我想用自定义颜色更改我的应用程序的颜色colorpicker.如何在css中更改一些代码？

例如,我有这一行style.css:

body{
  background: #ffffff;
}

(也像a,h1等所有标签都实现了一些颜色)

在控制器中我将其更改#ffffff为#000000.

什么是改变这种颜色在CSS中,不使用最好的办法ng-class还是ng-style在每个控制器的每个标签？

例如,我有这样的图像:

和css:

.company-header-avatar{
    width: 60px;
    height: 60px;
    -webkit-border-radius: 60px;
    -webkit-background-clip: padding-box;
    -moz-border-radius: 60px;
    -moz-background-clip: padding;
    border-radius: 60px;
    background-clip: padding-box;
    margin: 7px 0 0 5px;
    float: left;
}

结果我得到:

但他们很紧张.有没有办法让它们圆润,但没有拉伸？(例如,从中间获得部分等)

小提琴:

http://jsfiddle.net/73h7try9/

我有这个代码:

HTML:

<div class="tile">
    <h3>short</h3>
    <div class="content">Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo
consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse
cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non
proident, sunt in culpa qui officia deserunt mollit anim id est laborum.</div>
</div>

<div class="tile">
    <h3>longLongLong longLongLong …

在我使用WYSIWYG之一的角度应用程序中,我可以插入没有协议的链接.这很糟糕:

我需要解析字符串并更改所有链接(如果没有协议到http:// ..).

我试着这样做:

var content = '<p>7</p><p>77</p><p><br></p><p><a href="http://example.com" rel="nofollow">http://example.com</a></p><p><br></p><p><a href="example.com" target="_blank">example.com</a></p><p><br></p><p><a href="ftp://localhost">ftp://localhost</a></p><p><br></p><p><a href="localhost">localhost</a><br></p>';

var addProtocolToLinks = function(URL){
    var protocols = ['http', 'https', 'ftp', 'sftp', 'ssh', 'smtp'];
    var withProtocol = false;
    if (URL.length > 0){
      protocols.forEach(function(el) {
        if (URL.slice(0,4).indexOf(el) > -1){
          withProtocol = true;
        }
      });
      var newURL =  URL;
      if (!withProtocol){
        newURL = 'http://' + URL;
      }
      console.log(newURL + '   ' + URL);
      return newURL;
    }
};

var parser = new DOMParser();
var doc = parser.parseFromString(content, "text/html"); …

默认在我的应用程序中我有两个分辨率(宽度):

1024px+ & 520px

我有这样的视口:

<meta name="viewport" content="width=520, initial-scale=0.5" id="vwPrt">
<script>
  window.onload = function () {
    if(screen.width > 521) {
        var vpEl = document.getElementById('vwPrt');
        vpEl.setAttribute('content','width=520, initial-scale=1');
    }
    if(screen.width > 970) {
        var vpEl = document.getElementById('vwPrt');
        vpEl.setAttribute('content','width=1024, initial-scale=1');
    }
  }
</script>

和css:

...

@media all and (min-width:0px) and (max-width:520px){...}
...

有时在iOS设备上,我首先看到css样式的大分辨率(1024px +),并且只有在缩放或重新加载页面之后,才能获得适用于iPad和iPhone的520px(在纵向模式下).

我究竟做错了什么？

在桌面模式下,如何在不使用闪烁屏幕的情况下直接检测宽度并直接应用？

有可能创建这样的东西:

因为现在我有这样的东西:https: //jsfiddle.net/38kjb5us/

<div class="dropdown-content"></div>


body{
  background-image: url('//ssl.gstatic.com/gb/images/v1_76783e20.png');
}
.dropdown-content{
 display: inline-block;
 padding: 18px 14px;
 border: 1px solid #ffffff;
 min-width: 160px;
 position: relative;
 box-shadow: 0 0 10px #000000;
 margin: 15px;
}
.dropdown-content:before{
    position: absolute;
    content: "";
    border: 1px solid #ffffff;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 0 12px 12px 12px;
    border-color: transparent transparent #ffffff transparent;
    top: -12px;
 }

我不知道如何在透明容器中添加带边框的箭头(((

可能吗？如果是,那怎么样？

索引字段和硬盘/ RAM上的空间令牌最好的是什么？Biginteger或Varchar(15)？我可以有这样的索引号:

from  10000001 to 45281229703 and higher...

但更好的选择是什么？同样在非索引字段上哪种字段类型更好？