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Re-sign IPA (iPhone)

...rovisioning profile. Results in a new IPA signed with a enterprise account and a mobile provisioning profile for in house deployment (the mobile provisioning profile gets embedded to the IPA). Solution: Unzip the IPA unzip Application.ipa Remove old CodeSignature rm -r "Payload/Application.app...
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String concatenation in Ruby

...trings you often can gain performance by appending the strings to an array and then at the end put the string together atomically. Then << could be useful? – PEZ Dec 18 '08 at 13:12 ...
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What are 'closures' in .NET?

... The general feature of closures is implemented in C# by anonymous methods and lambda expressions. Here's an example using an anonymous method: using System; class Test { static void Main() { Action action = CreateAction(); action(); action(); } static Act...
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Does Typescript support the ?. operator? (And, what's it called?)

... Update: it is supported as of TypeScript 3.7 and called Optional chaining: https://www.typescriptlang.org/docs/handbook/release-notes/typescript-3-7.html#optional-chaining I can't find any reference to it whatsoever in the TypeScript language specification. As far as ...
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Eclipse returns error message “Java was started but returned exit code = 1”

...ine): /!\ make sure, that the -vm option occurs before the -vmargs command. Everything after -vmargs is passed directly to the JVM. -vm c:/wherever/java/jdk1.6.0_21/jre/bin/server/jvm.dll -vmargs... ...to your eclipse.ini file, pointing to the JDK you want to use, and check that the req...
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What is DOM Event delegation?

Can anyone please explain event delegation in JavaScript and how is it useful? 11 Answers ...
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What are static factory methods?

... if i understand correct, can you add availableConnections.add(db) to method returnDbConnection(DbConnection db)? – Haifeng Zhang May 6 '14 at 17:19 ...
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Are Java static initializers thread safe?

...ll only absolutely be called once when the class is first loaded? I understand I cannot guarantee when this code block will be called, I'm guessing its when the Classloader first loads it. I realize I could synchronize on the class in the static code block, but my guess is this is actually what happ...
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What is a typedef enum in Objective-C?

I don't think I fundamentally understand what an enum is, and when to use it. 13 Answers ...
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Finding the index of an item in a list

Given a list ["foo", "bar", "baz"] and an item in the list "bar" , how do I get its index ( 1 ) in Python? 31 Answers ...