javascript中字符串比较大小
<p>在JavaScript中可以直接使用【>】或【<】运算符比较两个字符串大小，因为这个时候JS解释器会把字符串转换为ASCII码逐个字符依次比较。</p><div class="cnblogs_code">
<pre><span style="color: rgba(0, 0, 255, 1)">var</span> a = "1.2.2a"<span style="color: rgba(0, 0, 0, 1)">;
</span><span style="color: rgba(0, 0, 255, 1)">var</span> b = "1.2.2b"<span style="color: rgba(0, 0, 0, 1)">;
console.log(a </span>> b); <span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 输出true</span>
console.log(a < b); <span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 输出false</span>
<span style="color: rgba(0, 0, 0, 1)">
a </span>= "1.02.1"<span style="color: rgba(0, 0, 0, 1)">;
b </span>= "1.1"<span style="color: rgba(0, 0, 0, 1)">;
console.log(a </span>> b); <span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 输出false</span>
console.log(a < b); <span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 输出true</span></pre>
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<p>常用的地方通常是在比较标准时间格式的场景中。</p>
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<pre>console.log('2019-12-23' > '2019-12-20'); <span style="color: rgba(0, 128, 0, 1)">//</span><span style="color: rgba(0, 128, 0, 1)"> 输出true</span></pre>
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<p> </p>
<p>"要走多远的路，才能看到想看的风景。"</p>
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你要去做一个大人，不要回头，不要难过。<br><br>
来源：https://www.cnblogs.com/yanggb/p/12077188.html
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