Nov 24, 2009 · Usually I would expect a String.contains() method, but there doesn't seem to be one. What is a reasonable way to check for this?

Sep 19, 2018 · You need to check exact property of the object. Contains will work only on strings or simple array, not array of abject. Should try like object.searchingProperty.Constains …

Learn how to check if a URL contains a specific string using various programming languages.

Oct 22, 2012 · Possible Duplicate: JavaScript: string contains I have a postcode variable and want to use JS to add a location into a different variable when the postcode is changed/entered. So …

Aug 18, 2010 · Mootools is one library that can help you write better cross browser javascript. It augments javascript basic types (strings, arrays, numbers, etc) with convenient methods like …

If you are capable of using libraries, you may find that Lo-Dash JS library is quite useful. In this case, go ahead and check _.contains() (replaced by _.includes() as of v4). (Note Lo-Dash …

Mar 9, 2018 · Array.prototype.includes uses the SameValueZero algorithm to determine equality between values. Closely related: How does the Array.prototype.includes function compare …

That doesn’t answer the question. When you wrote this answer, the title was “How to determine if Javascript array contains an object with an attribute that equals a given value?”. You’re …

I have a code like: var valid = viewName.contains('/'); which works fine in firefox browser. But in chrome it is undefined. Why is that so? Is it true that chrome has not such a method for string? …

Oct 10, 2015 · Array.prototype.includes returns a boolean. Array.prototype.indexOf returns a number. Array.prototype.contains is no native JS.