jsincludes数组查重
时间: 2023-09-04 14:14:31 浏览: 48
在JavaScript中,可以使用includes()方法来判断一个数组是否包含某个指定的值。该方法会返回一个布尔值,如果数组中包含该值,则返回true,否则返回false。例如,对于数组arr=['a','b','c','d'],通过调用arr.includes('a'),结果为true,调用arr.includes('e'),结果为false。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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