arrays Archives - IT Nursery

How do I zip two arrays in JavaScript?

I have 2 arrays: var a = [1, 2, 3] var b = [a, b, c] What I want to get as a … Read more

Convert NSArray to NSString in Objective-C

I am wondering how to convert an NSArray [@”Apple”, @”Pear “, 323, @”Orange”] to a string in Objective-C. 9 Answers 9

Sort an array in Java

I’m trying to make a program that consists of an array of 10 integers which all has a random value, so far so … Read more

Why are arrays covariant but generics are invariant?

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From Effective Java by Joshua Bloch, Arrays differ from generic type in two important ways. First arrays are covariant. Generics are invariant. Covariant … Read more

console.log(result) returns [object Object]. How do I get result.name? [duplicate]

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This question already has answers here: How to return the response from an asynchronous call (43 answers) Closed 5 years ago. My script … Read more

Counting array elements in Python [duplicate]

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This question already has answers here: How do I get the number of elements in a list in Python? (13 answers) Closed 4 … Read more

Remove leading comma from a string

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I have the following string: “,’first string’,’more’,’even more'” I want to transform this into an Array but obviously this is not valid due … Read more

Checking if a string array contains a value, and if so, getting its position

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I have this string array: string[] stringArray = { “text1”, “text2”, “text3”, “text4” }; string value = “text3”; I would like to determine … Read more

Objects are not valid as a React child. If you meant to render a collection of children, use an array instead

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I am setting up a React app with a Rails backend. I am getting the error “Objects are not valid as a React … Read more