查找值或检查对象中是否存在值

Question

i have a object like:

["1", "2", "1", "2"]

No i want to check if "1" exists in object. I don't need to know how often it exists.

$.inArray(1, myObject) -> Returns always -1

So what is wrong or what i have to do?

Answer 1

You're checking for an integer, when the array contains only strings. Also be advised that jQuery's inArray() function does not act like its PHP counterpart. Rather than returning true or false , it returns the actual zero-based index of the value if found (as an integer), or -1 if it isn't in the array.

Try this:

if($.inArray('1', myObject) >= 0) 
{
    // Do your stuff.
}

Here's a jsFiddle demo

Answer 2

Or you can use plain JS:

var x = ["1", "2", "1", "2"];

if (x.indexOf("1") !== -1) {
    console.log("found");
} else {
    console.log("not found");
}