freecodecamp html5

Return largest Numbers in Arrays (Find out the maximum number of multiple arrays) Requirements The large array contains 4 decimal groups, each of which finds the maximum value in each decimal group, and then concatenates them together to form a new array. Ideas Use the For loop to iterate through the algebraic groups and arr[i] access each element of the array in a way. In the first layer for loop, define the variable temp as the first element of the subar

Roman numeral Converter1. Requirements Converts a given number into Roman numerals All returned Roman numerals should be in uppercase form 2. Ideas Array of corresponding Roman numerals for single-digit, 10-bit, hundred, thousand, respectively Use Math.floor () to remove numbers from each bit of the number, and to find the corresponding Roman numerals in the previously defined array. 3. Codefunction convert(num) {var arr1 = [‘‘,‘I‘,‘II‘,‘III‘,‘IV‘,‘V‘,‘VI‘,‘VI

Diff two Arrays (compare two arrays)1. Requirements Compares two arrays and returns a new array The elements of the array are two of all unique array elements in a given array. In other words, returns the difference of two arrays. 2. Ideas Defines a new array variable that joins the two arrays entered with. Concat () to assign to it Defines a check function that returns all the unique array elements in a given array of two Filter out the eligible elements of a

Reverse a string (flip string) Title Requirements: Convert a string to an array Flipping the array order with the reverse method of the array Convert an array to a string Ideas: Use. Split (") to convert a string into an array of single letters Use. Reverse () to invert the array Concatenate array elements into strings using. Join (') The code is as follows: 　　 1 function reversestring (str) { 2 // Please write y

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Recently, many practical html5 video playing and music playing functions have been seen in the forum. Most of them are looking for answers. So I will make a demo here for everyone to learn from each other. Html5 development is becoming increasingly popular, and video is an essential part. How to make your website take advantage depends on your functions and user experience.

(1) HTML5 is now not a subset of SGML, it is mainly about the image, location, storage, geographical location and other functions of the increase. Painting canvas elements; Video and audio elements for media playback; Local offline storage Localstorage long-term storage data, the browser is closed after the data is not lost, sessionstorage data is automatically deleted after the browser is closed; Semantically better content eleme

Wang Jia Lin: committed to hardware and software cloud integration, familiar with Android, HTML5, hadoop Tel: 18610086859 Email: jialingege@126.com hiheartfirst@gmail.com HTML5YesDevice(Terminal devices) andCloudThe intersection of (cloud computing) is a perfect blend of design and technology. HTML5Not only representativeCloud(Cloud computing ),HTML5More importantly, the source of power comes fromDevice(Local hardware ). HTML5The times areD

HTML5 is attracting more and more attention. Apple even regards HTML5 as the source of Flash. However, HTML5 is still a new technology for many people. This article collects 15 HTML5 resources worth collecting. These resources can keep you consistent with the development of HTML5