[breakthrough point by point] summary of JavaScript array: introduction of array, definition of array, assignment and use, common methods, etc

preface Before learning, we want to tell you that this article is a summary of the array part of JavaScript language knowledge. If you have mastered the following knowledge, you can skip this link and go directly to the exercise Introduction to arraysDefine arrayArray assignment and useCommon mUTF-8...

Posted by tonypr100 on Fri, 21 May 2021 07:25:47 +0930

shell functions and arrays

Application of shell function Function application scenario: some commands need to be called and executed repeatedly. If the same command is used every time, it will lead to a large amount of code. In order to solve the problem, the command sequence can be written together according to the formUTF-8...

Posted by killswitchfilter on Tue, 08 Jun 2021 02:54:30 +0930

Starting from linear continuous storage, rethinking data structure

"Data structure" course is equivalent to "data structure and algorithm" most of the time, so we generally say that data structure will involve algorithm< Data structure requires students to complete complex programming according to the data structure theory. To improve the ability of program deUTF-8...

Posted by tomasd on Sun, 13 Jun 2021 04:05:22 +0930

Enhance code style -- Introduction to reduce() method of JavaScript array

Basic concepts The reduce() method executes the callback function for each element in the array in turn (excluding the elements deleted or never assigned) and returns a specific result. grammar reduce() receives two parameters. Its basic syntax is as follows: arr.reduce(callback,[initialValue]UTF-8...

Posted by The Bat on Sun, 13 Jun 2021 04:54:19 +0930

Creation of Numpy array

preface This article summarizes and introduces several main methods of creating Numpy array. 1. Convert from list and other Python structures [1] 2. Use Numpy internal function 2.1 arange numpy.arange([start,] stop[, step,], dtype=None): returns the values evenly spaced in a given interval in UTF-8...

Posted by ckuipers on Sat, 19 Jun 2021 02:10:47 +0930

Basic operation of [Numpy] array 4 - join array

preface This article summarizes and introduces one of the basic operations of Numpy array (ndarray) - join array [1]. 1. concatenate numpy.concatenate((a1, a2, …), axis=0, out=None, dtype=None, casting=“same_kind "): joins a series of arrays along an existing axis a1, a2,...: class array_like)UTF-8...

Posted by BRUm on Wed, 23 Jun 2021 04:34:05 +0930

Notes on data structure learning -- array, matrix and generalized table

array A two-dimensional array is a one-dimensional array whose element is a unary array. Arrays are usually stored in order. The two most common operations are search and modify. Calculation of the position of two-dimensional array elements: suppose there is a two-dimensional array a[m][n], andUTF-8...

Posted by hyd_guy on Sat, 10 Jul 2021 05:20:23 +0930

844. Compare strings with backspace

Title Description: given two strings S and T, when they are input into the blank text editor respectively, judge whether they are equal and return the result# Represents a backspace character. Note: if you enter a backspace character for empty text, the text continues to be empty. Example 1: InUTF-8...

Posted by reagent on Mon, 26 Jul 2021 02:34:23 +0930

Java - Common API s (Math, System, Object, Arrays, Basic Type Wrapper Class)01

Math An overview of Math classes Math contains methods for performing basic number operations Without a construction method, how do I use members in a class? See if the members of the class are all static, and if so, they can be called directly from the class name Method NameExplainpublic statiUTF-8...

Posted by stilgar on Tue, 27 Jul 2021 02:34:28 +0930

Do you really understand &quot;array&quot; in C language? (Beginner Level)

⭐ preface This paper will introduce the array in C language; Through arrays, we can more easily store and access these elements. In addition, arrays can also be combined with pointers to form array pointers or pointer arrays. (this is the focus, and a separate note will be made later) This chaUTF-8...

Posted by Mr_J on Thu, 09 Dec 2021 13:52:03 +1030