is equal on object property inside array I have object  var emailData = new {}; emailData.Id; emailData.EmailAddress;   later in code I'm populating array with emailData objects   var emailDataArr = new Array();  emailDataArr.push(..someobject...);   how can I check does any object on property EmailAddress inside emailDataArr array is equal to some string?
How do I check if an array includes a value in JavaScript? What is the most concise and efficient way to find out if a JavaScript array contains a value? This is the only way I know to do it: function contains(a, obj) {     for (var i = 0; i &lt; a.length; i++) {         if (a[i] === obj) {             return true;         }     }     return false; }  Is there a better and more concise way to accomplish this?
A machine is described as being "really slow" or "freezing". How can I troubleshoot/resolve this issue? What should be the first steps to take? Groups of prime squared order Stack Overflow reputation in CV Should I mention my Stack Overflow (and other Stack Exchange sites) reputation in my CV while applying for a post-graduate position? A proof of the fact that the Fourier transform is not surjective from $\mathcal{L}^1(\mathbb{R})$ to $C_0( \mathbb{R})$ Let $f_n = \mathbb 1_{[-n,n]}$ for all $n \in \mathbb{N}$   Compute explicitly $f_n \star f_1$ for all $n \in \mathbb{N}$.  Show that $f_n \star f_1$ is the Fourier transform of $g_n = \frac{  \sin{(2\pi x)} \sin{(2 \pi nx)}}{\pi ^2 x^2}$  Show that $\| g_n \|_1 \to \infty$  Deduce that the Fourier transform is not surjective from $\mathcal{L}^1(\mathbb{R})$ to $C_0( \mathbb{R})$    Here, $C_0(\mathbb{R})$ is the space of continuous functions $f : \mathbb{R} \to \mathbb{R}$ that tends to $0$ at $-\infty$ and $+\infty$. I managed to compute 1) and proved 2). But I don't know how to prove 3). Moreover, I don't see how can 1), 2) and 3) prove 4). Can anyone help? How can I see the phone number dialed after I initiate a call? Word for killing off or attempting to kill off an entire bloodline? How can I check if my computer's powerful enough to run a certain game? Why are some actors uncredited in certain films? Eli Wallach  in Mystic River. Olivia Williams  in X-Men: The Last Stand. However, neither of them (according to IMDb) is credited in the movie. These two instances are simply examples.  Why are some actors, who are oftentimes quite well known, not credited in certain features? Associativty of smash product on compact spaces Let $Y,Z$ be compact or $X,Z$ locally compact. Then the canonical bijection    $$ (X \wedge Y) \wedge Z \rightarrow X \wedge (Y \wedge Z) $$    is a homeomoprhism.    I can prove the case when $X,Z$ are locally compact using exponential law. But I don't see how one approaches the case when $Y,Z$ compact. Hints? ViewExpiredException in Firefox and IE after migrating to Jboss 7.0 AS I've heard that ratios or inverses of random variables often are problematic, in not having expectations. Why is that? The title is the question. I am told that ratios and inverses of random variables often are problematic. What is meant is that expectation often do not exist. Is there a simple, general explication of that? So many interesting questions get asked on Stack Overflow and then immediately closed (or worse yet, closed and re-opened for days on end) because they're subjective, argumentative, and fundamentally unanswerable due to our lack of omniscience: without the ability to see into the future and/or know the secret motivations of companies and their developers, we are left to make wildly varying (un)informed guesses. The obvious solution to this is to add a  feature to the Ask a Question page. Similar to the current &quot;Related Questions&quot; feature, this could be used to answer otherwise-unanswerable questions before they're asked, thus saving everyone time and frustration. I propose a simple system whereby a web cam is aimed at an ordinary  device, long recognized as one of the most accessible and accurate fortune-telling mechanisms available to modern society. A simple  could be placed under this rig and triggered in response to the user's typing. Once focus leaves the Title input field, a short delay will be triggered, followed by a bit of logic to capture the 8-ball's result and feed it through a simple OCR routine to produce the result.  So far as I'm aware, SO would be the first major Q&amp;A site to implement such a feature...  Examples:            ...another UV resurrection... Mannequin Duplication glitch Is there a quicker way to turn on WiFi Hotspot? is there a way to automate (or at least reduce the number of steps) to turn on or turn off the WiFi hotspot on my Galaxy 3.  I have to    unlock  press the menu button  press settings press More Settings Tethering and portable hotspot Slide portable hotspot on. I have an Android phone which is connected to a secured Wi-Fi hotspot.  How can I find out the password of the hotspot from the phone? Verify $\int\sec x\ dx=\frac12 \ln \left\lvert\frac{1+\sin x}{1-\sin x}\right\rvert + C$ I know that there is a very similar question, but I'm not interested in highlighting. What I'm looking for is some tool in Linux to edit pdf files. I've tried pdfedit which did the work for me, but if freezes after a few edits. I've tried this tool under Ubuntu 9.10 and under KDE Fedora 14 and the same thing happens. I've tried Okular but the notations are too big to fill out exercises from pdf workbooks.    Is there any tool that suits this job? I don't care whether it is open source or I have to pay a reasonable price for it. Merging two arrays in .NET Is there a built in function in .NET 2.0 that will take two arrays and merge them into one array?  The arrays are both of the same type. I'm getting these arrays from a widely used function within my code base and can't modify the function to return the data in a different format.  I'm looking to avoid writing my own function to accomplish this if possible. Why couldn't Ellie's experience be corroborated by simply re-using the machine? There is a command l available on my machine which appears to do nothing.  which l also produces no output. Is this a real command, and does it actually do anything?