The + x coerces the object x into a string, which is just [object Object]: http://jsfiddle.net/Ze32g/ The pretty printing is a very nice and probably very complex underlying code that someone implemented as part of the console object and the log method. Try this: console.log(“hmm: “, x);
In XPath 2.0 : string-join(/*/node()[not(self::p)], ”)
If you’re already on Servlet 3.1 / EL 3.0 (Tomcat 8, WildFly 8, GlassFish 4, etc), make use of new EL 3.0 += operator: <h:outputText value=”#{msg[‘entry’ += managedBean.entryIndex]}” /> If you’re only on Servlet 3.0 / EL 2.2 (Tomcat 7, JBoss AS 6/7, GlassFish 3, etc), make use of new EL 2.2 ability to directly … Read more
You can use Array.prototype.join to ignore undefined and null: [‘a’, ‘b’, void 0, null, 6].join(”); // ‘ab6’ According to the spec: If element is undefined or null, Let next be the empty String; otherwise, let next be ToString(element). Given that, What is the history behind the oddity that makes JS converting null or undefined to … Read more
The C++ way would be to use std::stringstream or just plain string concatenations. C++ strings are mutable so the performance considerations of concatenation are less of a concern. with regards to formatting, you can do all the same formatting on a stream, but in a different way, similar to cout. or you can use a … Read more
In case of 2 and 3 , Compiler cannot calculate the value of String , since hill + i is a runtime statement , same for s1.length() read here which i asked the same case – link Think like this the String s1 and s2 are using compile time constant , s1=”hill5″ and s2=”hill” + … Read more
I realized that the second way uses string concatenation and will create 5 new strings in memory and this might lead to a performance hit. No it won’t. Since these are string literals, they will be evaluated at compile time and only one string will be created. This is defined in the Java Language Specification … Read more
The || operator is “concatenate” – it joins together the two strings of its operands. From http://www.sqlite.org/lang_expr.html For padding, the seemingly-cheater way I’ve used is to start with your target string, say ‘0000’, concatenate ‘0000423’, then substr(result, -4, 4) for ‘0423’. Update: Looks like there is no native implementation of “lpad” or “rpad” in SQLite, … Read more
This answer shows usage of LINQ (Aggregate) as requested in the question and is not intended for everyday use. Because this does not use a StringBuilder it will have horrible performance for very long sequences. For regular code use String.Join as shown in the other answer Use aggregate queries like this: string[] words = { … Read more
Resource has the get overloaded version of getString which takes a varargs of type Object: getString(int, java.lang.Object…). If you setup correctly your string in strings.xml, with the correct place holders, you can use this version to retrieve the formatted version of your final String. E.g. <string name=”welcome_messages”>Hello, %1$s! You have %2$d new messages.</string> using getString(R.string.welcome_message, … Read more