Boolean对象构造AIWROK函数深度解析

YYPOST群发软件 发表于 2025-3-3 09:36:56

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source="https%3A%2F%2Fwww.yuque.com%2Faiwork%2Fnba2pr%2Flg4l3e5cedntcrmg"></ne-clipboard><div class="lake-content" typography="classic"><article class="lake-columns" style="display: flex;"><article class="lake-column-item" style="flex: 0.5 1 0%;"><div data-type="danger" class="ne-alert" style="border: 1px solid rgb(248, 206, 211); background-color: rgba(248, 206, 211, 0.5); margin-top: 4px; margin-bottom: 4px; padding: 10px; border-radius: 4px;">本类目代码集合：<ignore_js_op> </ignore_js_op><ignore_js_op> </ignore_js_op><ignore_js_op></ignore_js_op> </div></article><article class="lake-column-item" style="flex: 0.5 1 0%;"> </article></article><pre data-language="javascript" id="L85Qa" class="ne-codeblock language-javascript" style="border: 1px solid rgb(232, 232, 232); border-radius: 2px; background: rgb(249, 249, 249); padding: 16px; font-size: 13px; color: rgb(89, 89, 89);"><code>//第一个，boolean.constructor_函数的引用
// 创建布尔对象
var myBool = new Boolean(true);

// 访问构造函数
printl(myBool.constructor); // 输出: function Boolean() { }

// 确认构造函数的类型
printl(myBool.constructor === Boolean); // 输出: true

//第二个，boolean.toString___布尔转字符
// 创建一个 Boolean 对象
var boolTrue = new Boolean(true);
var boolFalse = new Boolean(false);

// 使用 toString() 方法转换为字符串
var strTrue = boolTrue.toString();// "true"
var strFalse = boolFalse.toString(); // "false"

// 打印结果
printl("布尔值转换为字符串的结果：");
printl("true 转换为字符串: " + strTrue); // 输出: true 转换为字符串: true
printl("false 转换为字符串: " + strFalse);// 输出: false 转换为字符串: false

// 直接使用 Boolean 对象
var boolNum = new Boolean(1);
printl("布尔对象(1)转换为字符串: " + boolNum.toString()); // 输出: true

var boolStr = new Boolean("");
printl("布尔对象('')转换为字符串: " + boolStr.toString()); // 输出: false

//第三个，boolean.valueOf___对象的原始值
// 创建一个 Boolean 对象
var bool1 = new Boolean(1); // 非零数字会被视为 true
var value1 = bool1.valueOf(); // 返回 true
printl(value1); // 输出: true

// 创建一个 Boolean 对象，值为 0
var bool2 = new Boolean(0); // 0 被视为 false
var value2 = bool2.valueOf(); // 返回 false
printl(value2); // 输出: false

// 创建一个 Boolean 对象，值为 null
var bool3 = new Boolean(null); // null 被视为 false
var value3 = bool3.valueOf(); // 返回 false
printl(value3); // 输出: false

// 创建一个 Boolean 对象，值为 undefined
var bool4 = new Boolean(undefined); // undefined 被视为 false
var value4 = bool4.valueOf(); // 返回 false
printl(value4); // 输出: false

// 创建一个 Boolean 对象，值为字符串 "hello"
var bool5 = new Boolean("hello"); // 非空字符串被视为 true
var value5 = bool5.valueOf(); // 返回 true
printl(value5); // 输出: true

// 创建一个 Boolean 对象，值为字符串 ""
var bool6 = new Boolean(""); // 空字符串被视为 false
var value6 = bool6.valueOf(); // 返回 false
printl(value6); // 输出: false

//第四个，prototype_扩展一个方法
// 扩展 Boolean 的原型，添加一个名为 myColor 的方法
Boolean.prototype.myColor = function () {
if (this.valueOf() === true) {
 this.color = "green"; // 如果布尔值为 true，设置颜色为绿色
} else {
 this.color = "red"; // 如果布尔值为 false，设置颜色为红色
}
}

// 创建布尔对象
var a = new Boolean(1); // 创建时传入 1，相当于 true
a.myColor(); // 调用 myColor 方法

// 获取 color 属性
var b = a.color; // 结果为 "green"
printl(b); // 输出: green

// 再创建一个布尔对象
var c = new Boolean(0); // 创建时传入 0，相当于 false
c.myColor(); // 调用 myColor 方法

// 获取 color 属性
var d = c.color; // 结果为 "red"
printl(d); // 输出: red

//第五个，类型.判断类型方法以及相关的例子
// 定义类型对象
const 类型 = {};

/**
* 判断变量数据是什么类型
* @param {任意} use
* @returns {字符串|null} 成功:返回对应类型单词,失败:null
*/
类型.判断类型 = function (use) {
switch (typeof (use)) {
 case 'undefined':
 return 'undefined';
 case 'number':
 return 'number';
 case 'string':
 return 'string';
 case 'boolean':
 return 'boolean';
 default:
 if (Array.isArray(use)) return 'Array';
 if (Object.prototype.toString.call(use) === '') return 'Object';
}
};

// 测试不同类型
var a; // undefined
var b = 1223; // number
var c = 'abcd'; // string
var d = true; // boolean
var e = ; // Array
var f = {a: 10, b: 20}; // Object

// 输出类型
printl(类型.判断类型(a)); // 'undefined'
printl(类型.判断类型(b)); // 'number'
printl(类型.判断类型(c)); // 'string'
printl(类型.判断类型(d)); // 'boolean'
printl(类型.判断类型(e)); // 'Array'
printl(类型.判断类型(f)); // 'Object'
</code></pre> <h3 id="e0de5921" style="margin-top: 16px; margin-bottom: 5px; font-size: 1em; line-height: 28px;">1. <code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;">boolean.constructor</code> 函数的引用</h3><pre data-language="javascript" id="wC1t9" class="ne-codeblock language-javascript" style="border: 1px solid rgb(232, 232, 232); border-radius: 2px; background: rgb(249, 249, 249); padding: 16px; font-size: 13px; color: rgb(89, 89, 89);"><code>var myBool = new Boolean(true);

printl(myBool.constructor); // 输出: function Boolean() { }
printl(myBool.constructor === Boolean); // 输出: true</code></pre> 这段代码创建了一个新的布尔对象 <code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;">myBool</code>，并打印其构造函数。<code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;">constructor</code> 属性返回一个指向创建该对象的 <code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;">Boolean</code> 函数的引用。检查 <code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;">myBool.constructor === Boolean</code> 返回 <code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;">true</code>，表明 <code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;">myBool</code> 是由 <code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;">Boolean</code> 函数创建的。<h3 id="119e81ce" style="margin-top: 16px; margin-bottom: 5px; font-size: 1em; line-height: 28px;">2. <code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;">boolean.toString()</code> --- 布尔转字符</h3><pre data-language="javascript" id="vjo3T" class="ne-codeblock language-javascript" style="border: 1px solid rgb(232, 232, 232); border-radius: 2px; background: rgb(249, 249, 249); padding: 16px; font-size: 13px; color: rgb(89, 89, 89);"><code>var boolTrue = new Boolean(true);
var boolFalse = new Boolean(false);

var strTrue = boolTrue.toString();// "true"
var strFalse = boolFalse.toString(); // "false"

printl("布尔值转换为字符串的结果：");
printl("true 转换为字符串: " + strTrue); // 输出: true 转换为字符串: true
printl("false 转换为字符串: " + strFalse);// 输出: false 转换为字符串: false</code></pre> 在此部分，创建两个布尔对象 <code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;">boolTrue</code> 和 <code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;">boolFalse</code>，然后通过调用 <code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;">toString()</code> 方法将它们转换成字符串。最后打印转换结果，展示了布尔值如何转化为字符串。<h3 id="16d6a9c5" style="margin-top: 16px; margin-bottom: 5px; font-size: 1em; line-height: 28px;">3. <code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;">boolean.valueOf()</code> --- 对象的原始值</h3><pre data-language="javascript" id="p68Gf" class="ne-codeblock language-javascript" style="border: 1px solid rgb(232, 232, 232); border-radius: 2px; background: rgb(249, 249, 249); padding: 16px; font-size: 13px; color: rgb(89, 89, 89);"><code>var bool1 = new Boolean(1); // 非零数字会被视为 true
var value1 = bool1.valueOf(); // 返回 true
printl(value1); // 输出: true

var bool2 = new Boolean(0); // 0 被视为 false
var value2 = bool2.valueOf(); // 返回 false
printl(value2); // 输出: false

// 并继续创建其他测试布尔对象</code></pre>DiffCopyInsert这段代码介绍了 <code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;">valueOf()</code> 方法，返回布尔对象的原始值。通过创建不同值的布尔对象（如 1、0 等），展示了如何获取其原始布尔值（<code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;">true</code> 或 <code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;">false</code>）。<h3 id="996af3d3" style="margin-top: 16px; margin-bottom: 5px; font-size: 1em; line-height: 28px;">4. <code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;">Boolean.prototype</code> 扩展一个方法</h3><pre data-language="javascript" id="TxX4G" class="ne-codeblock language-javascript" style="border: 1px solid rgb(232, 232, 232); border-radius: 2px; background: rgb(249, 249, 249); padding: 16px; font-size: 13px; color: rgb(89, 89, 89);"><code>Boolean.prototype.myColor = function() {
if (this.valueOf() === true) {
 this.color = "green"; // 如果布尔值为 true，设置颜色为绿色
} else {
 this.color = "red"; // 如果布尔值为 false，设置颜色为红色
}
}

var a = new Boolean(1); // 创建时传入 1，相当于 true
a.myColor(); // 调用 myColor 方法

var b = a.color; // 结果为 "green"
printl(b); // 输出: green</code></pre> 这里扩展了 <code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;">Boolean</code> 的原型，在其中添加了 <code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;">myColor</code> 方法。这个方法基于布尔对象的值设置颜色为 "green" 或 "red"。创建布尔对象 <code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;">a</code>，调用 <code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;">myColor</code> 方法后，获取并打印颜色属性。<h3 id="d636b477" style="margin-top: 16px; margin-bottom: 5px; font-size: 1em; line-height: 28px;">5. <code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;">类型.判断类型</code> 方法以及相关的例子</h3><pre data-language="javascript" id="MGH1y" class="ne-codeblock language-javascript" style="border: 1px solid rgb(232, 232, 232); border-radius: 2px; background: rgb(249, 249, 249); padding: 16px; font-size: 13px; color: rgb(89, 89, 89);"><code>const 类型 = {};

类型.判断类型 = function (use) {
switch (typeof (use)) {
 case 'undefined':
 return 'undefined';
 case 'number':
 return 'number';
 case 'string':
 return 'string';
 case 'boolean':
 return 'boolean';
 default:
 if (Array.isArray(use)) return 'Array';
 if (Object.prototype.toString.call(use) === '') return 'Object';
}
}

// 测试不同类型
var a; // undefined
var b = 1223; // number
var c = 'abcd'; // string
var d = true; // boolean
var e = ; // Array
var f = {a: 10, b: 20}; // Object

// 输出类型
printl(类型.判断类型(a)); // 'undefined'
printl(类型.判断类型(b)); // 'number'
printl(类型.判断类型(c)); // 'string'
printl(类型.判断类型(d)); // 'boolean'
printl(类型.判断类型(e)); // 'Array'
printl(类型.判断类型(f)); // 'Object'</code></pre> 这段代码定义了一个对象 <code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;">类型</code>，并为其添加了一个 <code class="ne-code" style="font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, Courier, monospace; background-color: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.08); border-radius: 2px; padding-right: 2px; padding-left: 2px;">判断类型</code> 方法，能够根据传入的参数返回对应的数据类型。通过多个测试变量，展示了如何使用这一方法来判断不同数据类型并输出结果。<img src="https://cdn.nlark.com/yuque/0/2025/png/44811133/1740965510602-d102eee2-69bc-4ff2-af73-437fd400bed0.png" width="1516.5" title="" crop="0,0,1,1" id="u6028d6b9" class="ne-image"><h3 id="25f9c7fa" style="margin-top: 16px; margin-bottom: 5px; font-size: 1em; line-height: 28px;">总结</h3>这些代码片段展示了 JavaScript 中布尔对象的用法、如何通过方法扩展原型、以及自定义如何判断类型的功能。将它们组合在一起，可以实现更复杂的操作和功能。一些具体的运行案例也清晰地证明了每个方法的效果及其返回值。</div></td></tr></tbody></table>

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