OOQ

#javascript #JavaScript / Object / Array.indexOf(), Array.lastIndexOf() - methods that return the position (index) of the matching element .indexOf() .indexOf() is a method that returns the index of the element that matches the given value. Grammar array. indexOf( value, start ) value: Enter the value to search for. start : The index value to start searching. Optional, if omitted the value is 0...

#Javascript #JavaScript/Object/Array.every()/Method to check if every element meets a condition .every() .every() is a method that checks whether all elements in an array meet a condition. Returns true if all elements satisfy the condition, false otherwise. example Check the elements of the array in ascending order, stop checking if any element does not satisfy the condition, and return false. R..

#Javascript #JavaScript / Object / Array.concat() / Add elements or arrays to an existing array to create a new array .concat() You can use the .concat() property to add elements or arrays to an existing array to create a new array. grammar var jbAry2 = jbAry1.concat( 'abc' ); Add the string abc to the jbAry1 array to create the jbAry2 array. var jbAry3 = jbAry1.concat( jbAry2 ); Sum two arrays ..

#Javascript #JavaScript/Object/Array.length/Property that returns the length of the array .length .length is an attribute that returns the length of the array. Returns a number one greater than the index value of the last element. It has a different meaning than the number of elements belonging to the array. grammar array.length example The index value of the last element of array jbAry1 is 3, s..

#HTML #figure #figcaption figure, figcaption Figures are tags that wrap pictures, images, diagrams, etc. figcaption creates a caption for the figure element. A child element of the figure element, placed at the very beginning or the very end. example Aenean nec mollis nulla. Phasellus lacinia tempus mauris eu laoreet. First Figure Aenean nec mollis nulla. Phasellus lacinia tempus mauris eu laore..

#HTML #img #img tag to insert img img는 HTML is included in this page. I'm sorry. src : current location alt : I don't know what to do width : width Height: height loading : Current status Example 1 Change width and height. I'm sorry for the inconvenience. Search engines hate the lack of alt attributes. Therefore, it is better to include alt="". Example 2 If only the horizontal size is determined..

#HTML #caption HTML / caption / tag to attach caption to table (table) caption Use the caption tag when captioning your table. The default position is centered above the table. Caption position is set on the caption side of CSS. example In order to grasp the position of the caption, the horizontal size of the table was set to 100% and a frame was added. Table Caption LoremIpsum DolorAmet #html c..

#HTML #Create HTML/table, thead, tbody, tfoot, th, tr, td/table Tags used to create the table Tables are made with table tags. Lines are created with tr tags. Cells containing column titles are created with th tags. Cells containing content are created with the td tag. Each column can be separated by thead, tbody and tfoot tags depending on the meaning of each column. Use the colspan attribute w..

#HTML #alink #HTML / a / Creating links Links are made up of tags. Link targets can be web pages, files, emails, and the like. basic grammar Label The href attribute value contains the address of a web page, image, video, file, etc. It is processed according to the settings of the web browser, such as moving to a web page, running a video player, downloading a file, etc. TIP If the href attribut..

#jquery # jQuery/Method/.addClass() - Method to add class value .addClass() You can add class values ​​to selected elements with .addClass() . Grammar .addClass( className ) Enclose class values ​​in double or single quotes. $( 'h1' ).addClass( 'abc' ); You can add multiple values ​​separated by overrides. $( 'h1' ).addClass( 'ab cd ef' ); As the class value is added while the page is loaded, th..