用多个OR ||简化IF语句相同变量的条件 [英] simplify IF statement with multiple OR || conditions for the same variable

问题描述

这是我的代码

var something = "four";

if(
    something == "one" || 
    something == "two" || 
    something == "three" ||
    something == "five" ||
    something == "six" ||
    something == "seven"
){
    document.body.innerHTML = "<h1>yes</h1>";
}else{
    document.body.innerHTML = "<h1>no</h1>";
}

鉴于所有条件都涉及相同的变量，是否有一种方法可以简化IF语句?

Is there a way to simplify the IF statement given that all the conditions regard the same variable?

演示

推荐答案

尝试一下:

var something = 4;

if([1,2,3,5,6,7].indexOf(something) > -1) {
 document.body.innerHTML = "<h1>yes</h1>";
} else {
 document.body.innerHTML = "<h1>no</h1>";
}

JSFiddle: http://jsfiddle.net/2onn6Lc2/1/

JSFiddle: http://jsfiddle.net/2onn6Lc2/1/

另外，请在 https://codereview.stackexchange.com/

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