How to convert array or string to array in JavaScript?

2018-06-09 04:12:09

This question already has an answer here:

Check if object is array? 38 answers

EDIT:

As @Jaromanda X pointed out in the other answer you can use concat:

var result = [].concat(aFunction());

kudos!

I don't think there is a way to do this without an if, so just check if the output is a String and, in case, add it to an empty array.

var result = myFn();
if (typeof result === 'string' || result instanceof String) {
    result = new Array(result);
}

使用数组concat函数

var arr = [].concat(aFunction());

没有“ 如果 ”;）（但在内部三元运算符正在做if / else的东西）

var result = aFunction();
result = (typeof result == "string") ? [result] : result;

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