Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
Which is more accurate/cross-browser compatible?
Example 1
if(!Array.isArray) {
Array.isArray = function (arg) {
return Object.prototype.toString.call(arg) == '[object Array]';
};
}
https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/isArray
Example 2
function isInArray(arr,str) {
return (arr.indexOf(str) != -1);
}
-I lost the source-
They do completely different things.
The first tests to see if something is an array. The second tests to see if an array contains a given object.