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Bash script error [: !=: unary operator expected

...actually simplistic ... Pretty much covers all of your cases, and no empty string or unary concerns. In the case the first arg is '-v', then do your conditional ps -ef, else in all other cases throw the usage. #!/bin/sh case $1 in '-v') if [ "$1" = -v ]; then echo "`ps -ef | grep -v '\[...
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Binding multiple events to a listener (without JQuery)?

...* @param {DOMElement} element - DOM element to add listeners to ** @param {string} eventNames - space separated list of event names, e.g. 'click change' ** @param {Function} listener - function to attach for each event as a listener */ function addListenerMulti(element, eventNames, listener) { var...
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How do you obtain a Drawable object from a resource id in android package?

...o use the code below (or something like it) to get an object from the android.R.drawable.* package? 6 Answers ...
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Why does jQuery or a DOM method such as getElementById not find the element?

What are the possible reasons for document.getElementById , $("#id") or any other DOM method / jQuery selector not finding the elements? ...
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How do I format a number with commas in T-SQL?

...s does include trailing decimals, though, that could be looped off with SUBSTRING. SELECT CONVERT(varchar, CAST(987654321 AS money), 1) share | improve this answer | follow...
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What are “sugar”, “desugar” terms in context of Java 8?

...nted as a standalone class You can investigate also what happen with the String switch, type erasure,... share | improve this answer | follow | ...
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Can I load a .NET assembly at runtime and instantiate a type knowing only the name?

...uld cover loading library by finding bin directory path. First solution: string assemblyName = "library.dll"; string assemblyPath = HttpContext.Current.Server.MapPath("~/bin/" + assemblyName); Assembly assembly = Assembly.LoadFrom(assemblyPath); Type T = assembly.GetType("Company.Project.Classname...
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Detecting an “invalid date” Date instance in JavaScript

... Here's how I would do it: if (Object.prototype.toString.call(d) === "[object Date]") { // it is a date if (isNaN(d.getTime())) { // d.valueOf() could also work // date is not valid } else { // date is valid } } else { // not a date } Update [2018-05-31]...
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MySQL Cannot Add Foreign Key Constraint

...the parent column exactly. For example, since medicalhistory.MedicalHistoryID is an INT, Patient.MedicalHistory also needs to be an INT, not a SMALLINT. Also, you should run the query set foreign_key_checks=0 before running the DDL so you can create the tables in an arbitrary order rather than need...
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#ifdef #ifndef in Java

...correct? What about the case where we have a bunch of private static final Strings that we'd like to set. (e.g. a set of server URLs that are set differently for production vs. staging) – tomwhipple Nov 19 '11 at 0:41 ...