Recent questions tagged Arrays

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arrays - see if a variable equals any other variables in a list php

In php, I was wondering how I check if a variable equals any of the variables in a list. I thought I could try ... be the best way to do it? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arrays - How do I count comma-separated values in PHP?

I have a variable holding values separated by a comma (Implode), and I'm trying to get the total count of the ... ']; $result = count($schools); See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arrays - Why can't I swap characters in a javascript string?

I am trying to swap first and last characters of array.But javascript is not letting me swap. I don't want to use ... ]; arr[last] = temp; } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arrays - 4D position from 1D index?

I need to extract a 4D position from a 1D array. I can see how it goes for 2D and 3D but I'm having a hard ... * depth * duration); int y = ?? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arrays - Numpy concatenate is slow: any alternative approach?

I am running the following code: for i in range(1000) My_Array=numpy.concatenate((My_Array,New_Rows[i]), axis ... Is there any faster approach? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arrays - Calculating Area of Irregular Polygon in C#

I've managed to write a 'for dummies' how to calculate the area of irregular polygon in C#, but I need it ... = 802.8789 Area = 83.2566504099523 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arrays - Swift - Generate combinations with repetition

I'm trying to generate a nested array containing all combinations with repetition in Apple's Swift programming language ... going wrong and why? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arrays - Why setting HashTable's length to a Prime Number is a good practice?

I was going through Eric Lippert's latest Blog post for Guidelines and rules for GetHashCode when i hit this para: ... it to a prime number?. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arrays - JQUERY: get the id's of the checked and not checked checkBox

I have this not so many checkboxes: <input type="checkbox" id="mango" value="mango" /> <label>MANGO</label><br> ... me how to do it.? thanks. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arrays - Java generics in ArrayList.toArray()

Say you have an arraylist defined as follows: ArrayList<String> someData = new ArrayList<>(); Later on in ... toArray() defaults to Objects? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arrays - Python list to Cython

I want to know how to convert normal python list to C list with Cython , process it and return a ... understand what's happening exactly. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arrays - Which algorithm does Ruby's sort method use?

When I sort an Array using the native sort method, which algorithm does Ruby use? Is it data-dependant, i. ... is the average time complexity? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arrays - Store multiple values in single key in json

I need to store many values in single key of json. e.g. { "number" : "1","2","3", "alphabet" : "a ... , "c" } Something like this. Any pointers? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arrays - A PostgreSQL query with 'ANY' is not working

SELECT "Ticket_id" FROM "Tickets" WHERE "Status" = 1 AND ("Ticket_id" != ANY(array[1,2,3])) Limit 6 And the result is 1,2,3,4,5,6 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arrays - Union and Intersection in PowerShell?

I have an array of objects of the following structure: structure Disk { int UID; String Computer; } A computer ... 't find this in PowerShell. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arrays - Get the column names of a python numpy ndarray

Let's say I have a data file called data.txt that looks like: TIME FX FY FZ 0 10 5 6 1 2 4 7 2 ... that doesn't seem very efficient or elegant. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arrays - Generating a dense matrix from a sparse matrix in numpy python

I have a Sqlite database that contains following type of schema: termcount(doc_num, term , count) This table ... cells will contain counts. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arrays - How do I increment a DOS variable in a FOR /F loop?

I'm trying to read text lines from a file, and increment a counter so I can eventually simulate an array ... . Suggestions welcome. Thanks, Mike See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arrays - Why are lists used infrequently in Go?

I'm new to Go, and quite excited about it. But, in all the languages I've worked with extensively: Delphi, ... array size? Why is List ignored? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arrays - The difference between assert.equal and assert.deepEqual in Javascript testing with Mocha?

I'm using Mocha to test a small module in my Express.js application. In this module, one of my functions ... assert.equal and assert.deepEqual? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arrays - How to union ranges in google spreadsheets

I want to union ranges from any Google spreadsheets. The example Sheet1!A:A {12, 131, 45} Sheet2!A:A {12, ... } The question How is it possible? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arrays - Bash: Iterate over variable names

I'm writing a bash script to analyse some files. In a first iteration I create associative arrays with word counts ... [$word]} times" done done See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arrays - What is wrong with promise resolving?

Any ideas? Why does node say 'filename is undefined'? Thanks. Contract, policy ans invoice functions resolve with no data ... defined }))) }) } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arrays - Returning Pointer from a Function in C++

When I return pointer from the function, its value can be accessed individually. But when a loop is used to ouput the ... +j); } return k; } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arrays - Shuffling string list in C# Windows phone 7

I've looked everywhere on how to shuffle/randomize a string list in C# for the windows phone 7. I'm still ... I have it wrong. Any suggestions? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arrays - Freezing rows in Sheets with Google Apps throws type error

I'm trying to use GAS to freeze the top row of each sheet. It works, freezes the desired rows, but ... place to upgrade for current users. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arrays - How to remove duplicate char in string in C

Total of Each Character Due to the long quarantine, Jojo is getting super bored. To get rid of his boredom, Jojo proposes ... "); } return 0; } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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arrays - Incremental variable definition

I want to automatically define incrementing variable names. So instead of this: $Var1 = 'This is variable one ... should have its own variable. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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