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 jQuery - append, prepend, after, before

 

before : 선택한 요소의 앞에 내용 삽입

after : 선택한 요소의 뒤에 내용 삽입 

prepend : 선택한요소의 자식요소 앞에 내용삽입

append : 선택한요소의 자식요소 뒤에 내용삽입

after() Inserts content after selected elements
before() Inserts content before selected elements
append() Inserts content at the end of selected elements
prepend() Inserts content at the beginning of selected elements

 

 

.

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 Deleting duplicated values from html form drop-down option list.

HTML 양식 드롭 다운 옵션 목록에서 중복 된 값 삭제

 

<select name="det_pas_object_gatve" class="det_pas_object_select_css">
<option selected="selected" value="">--- Choose street ---</option>
    <option value="Barrow">Barrow</option>
    <option value="Hornets">Hornets</option>
    <option value="Barrow">Barrow</option>
    <option value="Stanley">Stanley</option>
    <option value="Simon">Simon</option>
    <option value="Barrow">Barrow</option>
</select>





var foundedinputs = [];
       $("select[name=det_pas_object_gatve] option").each(function() {
         if($.inArray(this.value, foundedinputs) != -1) $(this).remove();
         foundedinputs.push(this.value);
       });
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[javascript] null, undefined, 공백 체크

 

// 넘어온 값이 빈값인지 체크합니다.
// !value 하면 생기는 논리적 오류를 제거하기 위해
// 명시적으로 value == 사용
// [], {} 도 빈값으로 처리
var isEmpty = function(value){
  if( value == "" || value == null || value == undefined || ( value != null && typeof value == "object" && !Object.keys(value).length ) ){
    return true
  }else{
    return false
  }
};
var value = 1; // Number 형 1 
console.log(value, typeof value); // 1 

number value = "1" // String 형 1 
console.log(value, typeof value); // 1 string
 
 
var value2 = "" 
if( value2 == ""){ 
    console.log("비어 있음"); 
}else{ 
    console.log("값이 있음"); 
}
 

 

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www.w3schools.com/cssref/css_selectors.asp

 

CSS Selectors Reference

CSS Selector Reference CSS Selectors In CSS, selectors are patterns used to select the element(s) you want to style. Use our CSS Selector Tester to demonstrate the different selectors. Selector Example Example description .class .intro Selects all elements

www.w3schools.com

www.w3schools.com/cssref/trysel.asp

 

Try CSS Selector

Welcome to My Homepage My name is Donald Duck. I live in Duckburg I have many friends: Goofy Mickey Daisy Pluto All my friends are great! But I really like Daisy!! Ciao bella We are all animals! My latest discoveries have led me to believe that we are all

www.w3schools.com

CSS Selectors

In CSS, selectors are patterns used to select the element(s) you want to style.

Use our CSS Selector Tester to demonstrate the different selectors.

SelectorExampleExample description

.class .intro Selects all elements with class="intro"
.class1.class2 .name1.name2 Selects all elements with both name1 and name2 set within its class attribute
.class1 .class2 .name1 .name2 Selects all elements with name2 that is a descendant of an element with name1
#id #firstname Selects the element with id="firstname"
* * Selects all elements
element p Selects all <p> elements
element.class p.intro Selects all <p> elements with class="intro"
element,element div, p Selects all <div> elements and all <p> elements
element element div p Selects all <p> elements inside <div> elements
element>element div > p Selects all <p> elements where the parent is a <div> element
element+element div + p Selects all <p> elements that are placed immediately after <div> elements
element1~element2 p ~ ul Selects every <ul> element that are preceded by a <p> element
[attribute] [target] Selects all elements with a target attribute
[attribute=value] [target=_blank] Selects all elements with target="_blank"
[attribute~=value] [title~=flower] Selects all elements with a title attribute containing the word "flower"
[attribute|=value] [lang|=en] Selects all elements with a lang attribute value starting with "en"
[attribute^=value] a[href^="https"] Selects every <a> element whose href attribute value begins with "https"
[attribute$=value] a[href$=".pdf"] Selects every <a> element whose href attribute value ends with ".pdf"
[attribute*=value] a[href*="w3schools"] Selects every <a> element whose href attribute value contains the substring "w3schools"
:active a:active Selects the active link
::after p::after Insert something after the content of each <p> element
::before p::before Insert something before the content of each <p> element
:checked input:checked Selects every checked <input> element
:default input:default Selects the default <input> element
:disabled input:disabled Selects every disabled <input> element
:empty p:empty Selects every <p> element that has no children (including text nodes)
:enabled input:enabled Selects every enabled <input> element
:first-child p:first-child Selects every <p> element that is the first child of its parent
::first-letter p::first-letter Selects the first letter of every <p> element
::first-line p::first-line Selects the first line of every <p> element
:first-of-type p:first-of-type Selects every <p> element that is the first <p> element of its parent
:focus input:focus Selects the input element which has focus
:hover a:hover Selects links on mouse over
:in-range input:in-range Selects input elements with a value within a specified range
:indeterminate input:indeterminate Selects input elements that are in an indeterminate state
:invalid input:invalid Selects all input elements with an invalid value
:lang(language) p:lang(it) Selects every <p> element with a lang attribute equal to "it" (Italian)
:last-child p:last-child Selects every <p> element that is the last child of its parent
:last-of-type p:last-of-type Selects every <p> element that is the last <p> element of its parent
:link a:link Selects all unvisited links
:not(selector) :not(p) Selects every element that is not a <p> element
:nth-child(n) p:nth-child(2) Selects every <p> element that is the second child of its parent
:nth-last-child(n) p:nth-last-child(2) Selects every <p> element that is the second child of its parent, counting from the last child
:nth-last-of-type(n) p:nth-last-of-type(2) Selects every <p> element that is the second <p> element of its parent, counting from the last child
:nth-of-type(n) p:nth-of-type(2) Selects every <p> element that is the second <p> element of its parent
:only-of-type p:only-of-type Selects every <p> element that is the only <p> element of its parent
:only-child p:only-child Selects every <p> element that is the only child of its parent
:optional input:optional Selects input elements with no "required" attribute
:out-of-range input:out-of-range Selects input elements with a value outside a specified range
::placeholder input::placeholder Selects input elements with the "placeholder" attribute specified
:read-only input:read-only Selects input elements with the "readonly" attribute specified
:read-write input:read-write Selects input elements with the "readonly" attribute NOT specified
:required input:required Selects input elements with the "required" attribute specified
:root :root Selects the document's root element
::selection ::selection Selects the portion of an element that is selected by a user
:target #news:target Selects the current active #news element (clicked on a URL containing that anchor name)
:valid input:valid Selects all input elements with a valid value
:visited a:visited Selects all visited links

 

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TypeScript-Handbook 한글 문서,  TypeScript Handbook을 번역하는 프로젝트입니다.

 

https://typescript-kr.github.io/

 

TypeScript 한글 문서

TypeScript 한글 번역 문서입니다

typescript-kr.github.io

 

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기능 

  • 간단한 클라이언트 사이드 라우팅
  • Hot Module Replacement를 지원하는 Webpack 기반 작업환경
  • Express 나 그 어떤 Node.js 서버와 함께 사용 가능
  • Babel / Webpack 환경설정 커스터마이징 가능 

https://nextjs.org/

 

Next.js by Vercel - The React Framework

Production grade React applications that scale. The world’s leading companies use Next.js by Vercel to build static and dynamic websites and web applications.

nextjs.org

https://velopert.com/3293

 

[Next.js 2.0] 간단한 React 전용 서버사이드 프레임워크, 기초부터 본격적으로 파보기 | VELOPERT.LOG

Next.js, 작년부터 존재함을 인지해왔고, 뭔가 멋지다는것도 알고있었지만 그 동안 딱히 필요성을 못 느껴서 오랫동안, 아주 오랫동안 미뤄왔습니다. (이 포스트를 보시는 여러분들중 일부도 그러

velopert.com

Why Next.js

The world’s leading companies use and love Next.js

Zero Config

Automatic compilation and bundling. Optimized for production from the start.

Documentation →

Hybrid: SSG and SSR

Pre-render pages at build time (SSG) or request time (SSR) in a single project.

Documentation →

Incremental Static Generation

Add and update statically pre-rendered pages incrementally after build time.

Documentation →

TypeScript Support

Automatic TypeScript configuration and compilation.

Documentation →

Fast Refresh

Fast, reliable live-editing experience, as proven at Facebook scale.

Documentation →

File-system Routing

Every component in the pages directory becomes a route.

Documentation →

API Routes

Optionally create API endpoints to provide backend functionality.

Documentation →

Built-in CSS Support

Create component-level styles with CSS modules. Built-in Sass support.

Documentation →

Code-splitting and Bundling

Optimized bundle splitting algorithm created by the Google Chrome team.

Documentation →

 

 

 

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