Call a function if a string contains any items in an array

Question

How can I call a JavaScript function if a string contains any of the items in an array?

Yes, I can use jQuery :)

Answer 1

You could use the grep function to find if there are any elements that satisfy the condition:

// get all elements that satisfy the condition
var elements = $.grep(someArray, function(el, index) {
    // This assumes that you have an array of strings
    // Test if someString contains the current element of the array
    return someString.indexOf(el) > -1;
});

if (elements.length > 0) {
    callSomeFunction();
}

Answer 2

You could use some(), a Mozilla extension which has been added to ECMAScript 5:

var haystack = 'I like eggs!';
if(['spam', 'eggs'].some(function(needle) {
    return haystack.indexOf(needle) >= 0;
})) alert('spam or eggs');