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<div class="headertitle"><div class="title">examples/component/maybe.cpp</div></div>
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<div class="contents">
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<a href="examples_2component_2maybe_8cpp.html">浏览该文件的文档.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">// Copyright 2020 Arthur Sonzogni. All rights reserved.</span></div>
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<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment">// 本源代码的使用受MIT许可证的约束，该许可证可在LICENSE文件中找到。</span></div>
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<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="preprocessor">#include <string></span> <span class="comment">// for string, allocator, basic_string</span></div>
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<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="preprocessor">#include <vector></span> <span class="comment">// for vector</span></div>
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<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span> </div>
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<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="preprocessor">#include "<a class="code" href="captured__mouse_8hpp.html">ftxui/component/captured_mouse.hpp</a>"</span> <span class="comment">// for ftxui</span></div>
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<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="preprocessor">#include "<a class="code" href="component_8hpp.html">ftxui/component/component.hpp</a>"</span> <span class="comment">// for operator|, Maybe, Checkbox, Radiobox, Renderer, Vertical</span></div>
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<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="preprocessor">#include "<a class="code" href="component__base_8hpp.html">ftxui/component/component_base.hpp</a>"</span> <span class="comment">// for Component</span></div>
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<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="preprocessor">#include "<a class="code" href="screen__interactive_8hpp.html">ftxui/component/screen_interactive.hpp</a>"</span> <span class="comment">// for ScreenInteractive</span></div>
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<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="preprocessor">#include "<a class="code" href="elements_8hpp.html">ftxui/dom/elements.hpp</a>"</span> <span class="comment">// for Element, border, color, operator|, text</span></div>
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<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="preprocessor">#include "<a class="code" href="color_8hpp.html">ftxui/screen/color.hpp</a>"</span> <span class="comment">// for Color, Color::Red</span></div>
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<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span> </div>
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<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="keyword">using namespace </span><a class="code hl_namespace" href="namespaceftxui.html">ftxui</a>;</div>
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<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span> </div>
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<div class="foldopen" id="foldopen00015" data-start="{" data-end="}">
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||
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"><a class="line" href="examples_2component_2maybe_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4"> 15</a></span><span class="keywordtype">int</span> <a class="code hl_function" href="examples_2component_2maybe_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a>() {</div>
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<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span> std::vector<std::string> entries = {</div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span> <span class="stringliteral">"entry 1"</span>,</div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span> <span class="stringliteral">"entry 2"</span>,</div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> <span class="stringliteral">"entry 3"</span>,</div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> };</div>
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<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> <span class="keywordtype">int</span> menu_1_selected = 0;</div>
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<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> <span class="keywordtype">int</span> menu_2_selected = 0;</div>
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<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> </div>
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<div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> <span class="keywordtype">bool</span> menu_1_show = <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> <span class="keywordtype">bool</span> menu_2_show = <span class="keyword">false</span>;</div>
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<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span> </div>
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<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> <span class="keyword">auto</span> <a class="code hl_variable" href="with__restored__io_8cpp.html#a73bcbd53d13c2f16ee8bdc6532798bd4">layout</a> = Container::Vertical({</div>
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||
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> <a class="code hl_function" href="group__component.html#gae0d441d2c83740f187f62db566bbefcd">Checkbox</a>(<span class="stringliteral">"Show menu_1"</span>, &menu_1_show),</div>
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||
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> <a class="code hl_function" href="group__component.html#ga3e7a44f321fa910f07aef5879e67af95">Radiobox</a>(&entries, &menu_1_selected) | border | <a class="code hl_function" href="group__component.html#ga20b66a70c1cd4ff3f0ff571a4507d2b4">Maybe</a>(&menu_1_show),</div>
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||
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> <a class="code hl_function" href="group__component.html#gae0d441d2c83740f187f62db566bbefcd">Checkbox</a>(<span class="stringliteral">"Show menu_2"</span>, &menu_2_show),</div>
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||
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> <a class="code hl_function" href="group__component.html#ga3e7a44f321fa910f07aef5879e67af95">Radiobox</a>(&entries, &menu_2_selected) | border | <a class="code hl_function" href="group__component.html#ga20b66a70c1cd4ff3f0ff571a4507d2b4">Maybe</a>(&menu_2_show),</div>
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||
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> </div>
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||
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> <a class="code hl_function" href="group__component.html#ga533e883e2aeea28de2b60564fcaf0361">Renderer</a>([] {</div>
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||
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> <span class="keywordflow">return</span> <a class="code hl_function" href="group__dom.html#ga75baaa2734ed76a9f478beaafa87ae57">text</a>(<span class="stringliteral">"You found the secret combinaison!"</span>) | <a class="code hl_function" href="group__dom.html#gaf61b489da39ca5e24b68e6e1a2b09c0d">color</a>(<a class="code hl_enumvalue" href="group__screen.html#ae2b6d9670960e89c66d7b76167a0802fad3163c1fcda01965b692ec2c3122b743">Color::Red</a>);</div>
|
||
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> }) | <a class="code hl_function" href="group__component.html#ga20b66a70c1cd4ff3f0ff571a4507d2b4">Maybe</a>([&] { <span class="keywordflow">return</span> menu_1_selected == 1 && menu_2_selected == 2; }),</div>
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||
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> });</div>
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||
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> </div>
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||
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> <span class="keyword">auto</span> screen = <a class="code hl_function" href="group__component.html#a0b7de0467b4e57ce5f337ba8634d8d13">ScreenInteractive::TerminalOutput</a>();</div>
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||
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> screen.Loop(<a class="code hl_variable" href="with__restored__io_8cpp.html#a73bcbd53d13c2f16ee8bdc6532798bd4">layout</a>);</div>
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||
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span>}</div>
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</div>
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||
<div class="ttc" id="acaptured__mouse_8hpp_html"><div class="ttname"><a href="captured__mouse_8hpp.html">captured_mouse.hpp</a></div></div>
|
||
<div class="ttc" id="acolor_8hpp_html"><div class="ttname"><a href="color_8hpp.html">color.hpp</a></div></div>
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||
<div class="ttc" id="acomponent_8hpp_html"><div class="ttname"><a href="component_8hpp.html">component.hpp</a></div></div>
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||
<div class="ttc" id="acomponent__base_8hpp_html"><div class="ttname"><a href="component__base_8hpp.html">component_base.hpp</a></div></div>
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||
<div class="ttc" id="aelements_8hpp_html"><div class="ttname"><a href="elements_8hpp.html">elements.hpp</a></div></div>
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||
<div class="ttc" id="aexamples_2component_2maybe_8cpp_html_ae66f6b31b5ad750f1fe042a706a4e3d4"><div class="ttname"><a href="examples_2component_2maybe_8cpp.html#ae66f6b31b5ad750f1fe042a706a4e3d4">main</a></div><div class="ttdeci">int main()</div><div class="ttdef"><b>定义</b> <a href="#l00015">examples/component/maybe.cpp:15</a></div></div>
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||
<div class="ttc" id="agroup__component_html_a0b7de0467b4e57ce5f337ba8634d8d13"><div class="ttname"><a href="group__component.html#a0b7de0467b4e57ce5f337ba8634d8d13">ftxui::ScreenInteractive::TerminalOutput</a></div><div class="ttdeci">static ScreenInteractive TerminalOutput()</div><div class="ttdef"><b>定义</b> <a href="screen__interactive_8cpp_source.html#l00330">screen_interactive.cpp:330</a></div></div>
|
||
<div class="ttc" id="agroup__component_html_ga20b66a70c1cd4ff3f0ff571a4507d2b4"><div class="ttname"><a href="group__component.html#ga20b66a70c1cd4ff3f0ff571a4507d2b4">ftxui::Maybe</a></div><div class="ttdeci">Component Maybe(Component, const bool *show)</div><div class="ttdoc">装饰一个组件 |child|。它仅在 |show| 为 true 时显示。</div><div class="ttdef"><b>定义</b> <a href="src_2ftxui_2component_2maybe_8cpp_source.html#l00074">src/ftxui/component/maybe.cpp:74</a></div></div>
|
||
<div class="ttc" id="agroup__component_html_ga3e7a44f321fa910f07aef5879e67af95"><div class="ttname"><a href="group__component.html#ga3e7a44f321fa910f07aef5879e67af95">ftxui::Radiobox</a></div><div class="ttdeci">Component Radiobox(RadioboxOption options)</div><div class="ttdoc">元素列表，其中只能选择一个。</div><div class="ttdef"><b>定义</b> <a href="src_2ftxui_2component_2radiobox_8cpp_source.html#l00203">src/ftxui/component/radiobox.cpp:203</a></div></div>
|
||
<div class="ttc" id="agroup__component_html_ga533e883e2aeea28de2b60564fcaf0361"><div class="ttname"><a href="group__component.html#ga533e883e2aeea28de2b60564fcaf0361">ftxui::Renderer</a></div><div class="ttdeci">Component Renderer(Component child, std::function< Element()>)</div><div class="ttdoc">返回一个新组件，类似于 |child|，但使用 |render| 作为 Component::Render() 事件。</div><div class="ttdef"><b>定义</b> <a href="src_2ftxui_2component_2renderer_8cpp_source.html#l00061">src/ftxui/component/renderer.cpp:61</a></div></div>
|
||
<div class="ttc" id="agroup__component_html_gae0d441d2c83740f187f62db566bbefcd"><div class="ttname"><a href="group__component.html#gae0d441d2c83740f187f62db566bbefcd">ftxui::Checkbox</a></div><div class="ttdeci">Component Checkbox(CheckboxOption options)</div><div class="ttdoc">绘制可勾选元素。</div><div class="ttdef"><b>定义</b> <a href="src_2ftxui_2component_2checkbox_8cpp_source.html#l00108">src/ftxui/component/checkbox.cpp:108</a></div></div>
|
||
<div class="ttc" id="agroup__dom_html_ga75baaa2734ed76a9f478beaafa87ae57"><div class="ttname"><a href="group__dom.html#ga75baaa2734ed76a9f478beaafa87ae57">ftxui::text</a></div><div class="ttdeci">Element text(std::wstring text)</div><div class="ttdoc">显示一段Unicode文本。</div><div class="ttdef"><b>定义</b> <a href="text_8cpp_source.html#l00160">text.cpp:160</a></div></div>
|
||
<div class="ttc" id="agroup__dom_html_gaf61b489da39ca5e24b68e6e1a2b09c0d"><div class="ttname"><a href="group__dom.html#gaf61b489da39ca5e24b68e6e1a2b09c0d">ftxui::color</a></div><div class="ttdeci">Decorator color(Color)</div><div class="ttdoc">使用前景色进行装饰。</div><div class="ttdef"><b>定义</b> <a href="dom_2color_8cpp_source.html#l00110">dom/color.cpp:110</a></div></div>
|
||
<div class="ttc" id="agroup__screen_html_ae2b6d9670960e89c66d7b76167a0802fad3163c1fcda01965b692ec2c3122b743"><div class="ttname"><a href="group__screen.html#ae2b6d9670960e89c66d7b76167a0802fad3163c1fcda01965b692ec2c3122b743">ftxui::Color::Red</a></div><div class="ttdeci">@ Red</div><div class="ttdef"><b>定义</b> <a href="color_8hpp_source.html#l00053">color.hpp:53</a></div></div>
|
||
<div class="ttc" id="anamespaceftxui_html"><div class="ttname"><a href="namespaceftxui.html">ftxui</a></div><div class="ttdoc">#include "ftxui/component/component_base.hpp" // 用于 ComponentBase</div><div class="ttdef"><b>定义</b> <a href="animation_8hpp_source.html#l00009">animation.hpp:9</a></div></div>
|
||
<div class="ttc" id="ascreen__interactive_8hpp_html"><div class="ttname"><a href="screen__interactive_8hpp.html">screen_interactive.hpp</a></div></div>
|
||
<div class="ttc" id="awith__restored__io_8cpp_html_a73bcbd53d13c2f16ee8bdc6532798bd4"><div class="ttname"><a href="with__restored__io_8cpp.html#a73bcbd53d13c2f16ee8bdc6532798bd4">layout</a></div><div class="ttdeci">auto layout</div><div class="ttdef"><b>定义</b> <a href="with__restored__io_8cpp_source.html#l00032">with_restored_io.cpp:32</a></div></div>
|
||
</div><!-- fragment --></div><!-- contents -->
|
||
</div><!-- doc-content -->
|
||
<!-- HTML footer for doxygen 1.9.8-->
|
||
<!-- start footer part -->
|
||
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
|
||
</div>
|
||
<script>
|
||
document.addEventListener('DOMContentLoaded', function() {
|
||
const projectNumber = document.getElementById('projectname');
|
||
|
||
if (!projectNumber) {
|
||
console.warn('Doxygen element with ID "projectnumber" not found. Cannot add version switcher.');
|
||
return;
|
||
}
|
||
|
||
const langs = ["en", "es", "fr", "ja", "zh-CH", "zh-TW"];
|
||
const lang_paths = {"en": "../index.html", "es": "../es/index.html", "fr": "../fr/index.html", "ja": "../ja/index.html", "zh-CH": "index.html", "zh-TW": "../zh-TW/index.html"};
|
||
const lang_display = {"en": "English", "es": "Espa\u00f1ol", "fr": "Fran\u00e7ais", "ja": "\u65e5\u672c\u8a9e", "zh-CH": "\u4e2d\u6587 (\u7b80\u4f53)", "zh-TW": "\u4e2d\u6587 (\u7e41\u9ad4)"};
|
||
const versions = ["main"];
|
||
const version_paths = {"main": "index.html"};
|
||
const currentLang = "zh-CH";
|
||
const currentVersion = "main";
|
||
|
||
// Helper function to create a styled select element
|
||
const createSelect = (options, current, paths, label, displayMap = null) => {
|
||
const select = document.createElement('select');
|
||
select.title = label;
|
||
select.onchange = function() {
|
||
const selectedValue = this.value;
|
||
if (selectedValue in paths) {
|
||
window.location.href = paths[selectedValue];
|
||
}
|
||
};
|
||
|
||
// Sort versions: 'main' first, then others numerically descending.
|
||
options.sort((a, b) => {
|
||
if (a === 'main') return -1;
|
||
if (b === 'main') return 1;
|
||
return b.localeCompare(a, undefined, { numeric: true, sensitivity: 'base' });
|
||
});
|
||
|
||
options.forEach(v => {
|
||
const option = document.createElement('option');
|
||
option.value = v;
|
||
// Use the displayMap if provided, otherwise default to the value (v)
|
||
option.textContent = displayMap ? displayMap[v] : v;
|
||
if (v === current) {
|
||
option.selected = true;
|
||
}
|
||
select.appendChild(option);
|
||
});
|
||
|
||
// Apply some styling to make it look good.
|
||
Object.assign(select.style, {
|
||
backgroundColor: 'rgba(0, 0, 0, 0.8)',
|
||
color: 'white',
|
||
border: '1px solid rgba(255, 255, 255, 0.2)',
|
||
padding: '5px',
|
||
borderRadius: '5px',
|
||
fontSize: '14px',
|
||
fontFamily: 'inherit',
|
||
margin: '0 5px 0 0',
|
||
cursor: 'pointer'
|
||
});
|
||
return select;
|
||
};
|
||
|
||
// 1. Create Language Switcher, passing the language display names map
|
||
const langSelect = createSelect(langs, currentLang, lang_paths, 'Select Language', lang_display);
|
||
|
||
// 2. Create Version Switcher
|
||
const versionSelect = createSelect(versions, currentVersion, version_paths, 'Select Version');
|
||
|
||
// 3. Create FTXUI title.
|
||
const ftxuiTitle = document.createElement('span');
|
||
ftxuiTitle.textContent = 'FTXUI: ';
|
||
Object.assign(ftxuiTitle.style, {
|
||
color: 'white',
|
||
fontSize: '20px',
|
||
fontWeight: 'bold',
|
||
marginRight: '10px'
|
||
});
|
||
|
||
// 3. Create a container to hold both selectors
|
||
const container = document.createElement('div');
|
||
container.id = 'version-lang-switchers';
|
||
Object.assign(container.style, {
|
||
display: 'flex',
|
||
alignItems: 'center',
|
||
justifyContent: 'flex-end',
|
||
width: 'auto'
|
||
});
|
||
container.appendChild(ftxuiTitle);
|
||
container.appendChild(langSelect);
|
||
container.appendChild(versionSelect);
|
||
|
||
Object.assign(container.style, {
|
||
backgroundColor: 'rgba(0, 0, 0, 0.5)',
|
||
padding: '5px 10px',
|
||
borderRadius: '8px'
|
||
});
|
||
|
||
|
||
// Replace the Doxygen project number element with our container.
|
||
projectNumber.replaceWith(container);
|
||
|
||
// Clean up the original Doxygen project number text if it still exists nearby
|
||
const parent = container.parentElement;
|
||
if (parent) {
|
||
const textNode = Array.from(parent.childNodes).find(n => n.nodeType === 3 && n.textContent.trim() !== '');
|
||
if (textNode) {
|
||
textNode.remove();
|
||
}
|
||
}
|
||
});
|
||
</script>
|
||
</body>
|
||
</html>
|