In the template world of AnQi CMS, we often need some flexible tools to quickly build page layouts, or generate placeholder content when there is no actual data.repeatThe filter is a very practical but not very eye-catching feature that can help you repeat the specified string N times in a concise manner.

repeatFilter: Practical Tips for Quickly Generating Duplicate Strings in English

On website content management and template design, sometimes we need to repeat a character, phrase, or even a short HTML code.For example, when you need a separator line, a star rating display, or temporarily fill the page area with placeholder content while waiting for backend data loading.Manually copying and pasting is inefficient and will make template code long and difficult to maintain.repeatthe filter can come into play.

What isrepeatFilter?

In the Django-like template engine of AnQin CMS, filters are powerful tools for modifying the display output of variables.|Concatenates to a variable or string and can accept a parameter to customize its behavior.repeatThe filter is just one of many filters, and its core function is to repeat the given string according to the number of times you specify.

How to userepeatFilter?

repeatThe usage of the filter is very intuitive. You just need to place the repeated string on the left, through the pipe|Connectrepeatfilter, and use a colon after the filter:to specify the number of repetitions.

The basic syntax structure is as follows:{{ 要重复的字符串 | repeat:次数 }}

Here are the要重复的字符串Can be any text content,次数then it is an integer indicating how many times you want the string to be repeated.

Let's look at a simple example: If you want to output the word 'AnQi CMS' five times on the page, you can write it like this:

{{ "安企CMS"|repeat:5 }}

The output result of this code will be:安企CMS安企CMS安企CMS安企CMS安企CMS

Useful scenario examples

repeatThe filter is very flexible in practical applications, and here are some common examples:

  1. Generate placeholder textWhen you are designing a new article list or product display page, but do not have real titles or description content yet, you can userepeatGenerate placeholder content to quickly check the layout effect.

    <p>文章标题：{{ "这是占位标题内容"|repeat:2 }}</p>
<p>文章简介：{{ "这是一段简短的占位文本内容，用于填充页面空间。"|repeat:3 }}</p>

    Output effect:文章标题：这是占位标题内容这是占位标题内容 文章简介：这是一段简短的占位文本内容，用于填充页面空间。这是一段简短的占位文本内容，用于填充页面空间。这是一段简短的占位文本内容，用于填充页面空间。

  2. Create visual separatorCommonly used visual separators on a page, especially those composed of characters, can berepeat轻松实现English。

    <div class="section-separator">
    {{ "-"|repeat:80 }}
</div>
<p>这里是正文内容。</p>
<div class="section-separator">
    {{ "="|repeat:40 }}
</div>

    Output effect:-------------------------------------------------------------------------------- 这里是正文内容。 ========================================

  3. Display rating starsCan be used on product detail pages or user review modulesrepeatDisplay star ratings dynamically.

    {% set rating = 4 %} {# 假设从后台获取的评分是4星 #}
<div>
    当前评分：{{ "★"|repeat:rating }}
</div>

    Output effect:当前评分：★★★★

  4. Generate repetitive content with HTMLIf you need to repeat a string containing HTML tags and want the browser to normally parse these tags, you need to combinesafea filter to use.safeThe filter tells the template engine that this content is safe and does not require HTML escaping.

    <div class="badges">
    {{ "<span style='color: green; margin-right: 5px;'>✓</span>"|repeat:3|safe }}
    已通过安全验证
</div>

    Output effect (assuming the browser parses):✓ ✓ ✓ 已通过安全验证

Deep understandingrepeatFilter

  • Non-string input: repeatFilter design is used to process strings.If you attempt to perform repeated operations on non-string types (such as numbers, boolean values), they are usually automatically converted to strings before the operation.
  • The repetition count is 0 or negative:When you set the repetition count to 0 or any negative number,repeatThe filter outputs an empty string. This is a reasonable default behavior that avoids unnecessary errors.
  • The string is empty:If the string to be repeated is empty itself, then no matter how many times it is repeated, the result is still an empty string.

repeatThe filter provides great convenience for template development of the security CMS with its simple and clear manner.Whether it is used for quickly building prototypes, filling in test data, or handling some simple content display requirements, it can help us write more concise and more readable template code.

Common Questions (FAQ)

Q1:repeatCan the filter output HTML tags repeatedly and allow the browser to parse them normally?A1: It is okay. If your string contains HTML tags and you want these tags to be parsed by the browser instead of displayed as plain text, you need to use them together.safefilter. For example:{{ "<b>强调文本</b>"|repeat:2|safe }}.

Q2: What will be the result if I set the repetition count to 0 or negative?A2: When you arerepeatThe number of times the filter is set is 0 or any negative number, it will output an empty string. This is to ensure that when the repeat condition is not met, the page content will not appear abnormal or erroneous.

Q3:repeatfilters andloremWhat are the differences between tags, and what scenarios are they suitable for?A3:repeatFilter for duplicatesThe string you have explicitly specifiedN times, for example, repeat "Security CMS" or "★". It is suitable for scenarios that require precise control over repeated content.loremTags are used toGenerate random Latin placeholder contentEnglish translation: Typically used in the early stages of designing templates, where a large amount of text is needed to fill the layout, but the content should not have actual meaning to avoid distracting from the design. In simple terms,repeatIs "auto" repeated content.loremIs "auto" generated random content.