Vite

Vue Sass error

Deprecation Warning: Sass @import rules are deprecated and will be removed in Dart Sass 3.0.0.

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Deprecation Warning [import]: Sass @import rules are deprecated and will be removed in Dart Sass 3.0.0.

More info and automated migrator: https://sass-lang.com/d/import
@import "mixins/banner";
  │         ^^^^^^^^^^^^^^^
  ╵
    node_modules/bootstrap/scss/bootstrap.scss 1:9  @use
    src/assets/styles/base.scss 1:1                 root stylesheet

Deprecation Warning [import]: Sass @import rules are deprecated and will be removed in Dart Sass 3.0.0.

More info and automated migrator: https://sass-lang.com/d/import

  ╷
7 │ @import "functions";
  │         ^^^^^^^^^^^
  ╵
    node_modules/bootstrap/scss/bootstrap.scss 7:9  @use
    src/assets/styles/base.scss 1:1                 root stylesheet

Deprecation Warning [import]: Sass @import rules are deprecated and will be removed in Dart Sass 3.0.0.

More info and automated migrator: https://sass-lang.com/d/import

  ╷
8 │ @import "variables";
  │         ^^^^^^^^^^^
  ╵
    node_modules/bootstrap/scss/bootstrap.scss 8:9  @use
    src/assets/styles/base.scss 1:1                 root stylesheet

Deprecation Warning [import]: Sass @import rules are deprecated and will be removed in Dart Sass 3.0.0.

More info and automated migrator: https://sass-lang.com/d/import

  ╷
9 │ @import "variables-dark";
  │         ^^^^^^^^^^^^^^^^
  ╵
    node_modules/bootstrap/scss/bootstrap.scss 9:9  @use
    src/assets/styles/base.scss 1:1                 root stylesheet

Deprecation Warning [import]: Sass @import rules are deprecated and will be removed in Dart Sass 3.0.0.

More info and automated migrator: https://sass-lang.com/d/import

   ╷
10 │ @import "maps";
   │         ^^^^^^
   ╵
    node_modules/bootstrap/scss/bootstrap.scss 10:9  @use
    src/assets/styles/base.scss 1:1                  root stylesheet

Deprecation Warning [global-builtin]: Global built-in functions are deprecated and will be removed in Dart Sass 3.0.0.
Use color.mix instead.

More info and automated migrator: https://sass-lang.com/d/import

    ╷
207 │   @return mix(white, $color, $weight);
    │           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
    ╵
    node_modules/bootstrap/scss/_functions.scss 207:11  tint-color()
    node_modules/bootstrap/scss/_variables.scss 79:12   @import
    node_modules/bootstrap/scss/bootstrap.scss 8:9      @use
    src/assets/styles/base.scss 1:1                     root stylesheet

Deprecation Warning [global-builtin]: Global built-in functions are deprecated and will be removed in Dart Sass 3.0.0.
Use color.mix instead.

More info and automated migrator: https://sass-lang.com/d/import

    ╷
212 │   @return mix(black, $color, $weight);
    │           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
    ╵
    node_modules/bootstrap/scss/_functions.scss 212:11  shade-color()
    node_modules/bootstrap/scss/_variables.scss 84:12   @import
    node_modules/bootstrap/scss/bootstrap.scss 8:9      @use
    src/assets/styles/base.scss 1:1                     root stylesheet

Deprecation Warning [global-builtin]: Global built-in functions are deprecated and will be removed in Dart Sass 3.0.0.
Use color.mix instead.

More info and automated migrator: https://sass-lang.com/d/import

    ╷
342 │ $light-bg-subtle:         mix($gray-100, $white) !default;
    │                           ^^^^^^^^^^^^^^^^^^^^^^
    ╵
    node_modules/bootstrap/scss/_variables.scss 342:27  @import
    node_modules/bootstrap/scss/bootstrap.scss 8:9      @use
    src/assets/styles/base.scss 1:1                     root stylesheet

Deprecation Warning [global-builtin]: Global built-in functions are deprecated and will be removed in Dart Sass 3.0.0.
Use math.unit instead.

More info and automated migrator: https://sass-lang.com/d/import

   ╷
11 │     @if $prev-num == null or unit($num) == "%" or unit($prev-num) == "%" {
   │                              ^^^^^^^^^^
   ╵
    node_modules/bootstrap/scss/_functions.scss 11:30  -assert-ascending()
    node_modules/bootstrap/scss/_variables.scss 494:1  @import
    node_modules/bootstrap/scss/bootstrap.scss 8:9     @use
    src/assets/styles/base.scss 1:1                    root stylesheet

Deprecation Warning [global-builtin]: Global built-in functions are deprecated and will be removed in Dart Sass 3.0.0.
Use math.unit instead.

More info and automated migrator: https://sass-lang.com/d/import

   ╷
11 │     @if $prev-num == null or unit($num) == "%" or unit($prev-num) == "%" {
   │                                                   ^^^^^^^^^^^^^^^
   ╵
    node_modules/bootstrap/scss/_functions.scss 11:51  -assert-ascending()
    node_modules/bootstrap/scss/_variables.scss 494:1  @import
    node_modules/bootstrap/scss/bootstrap.scss 8:9     @use
    src/assets/styles/base.scss 1:1                    root stylesheet

Deprecation Warning [color-functions]: red() is deprecated. Suggestion:

color.channel($color, "red", $space: rgb)

More info: https://sass-lang.com/d/color-functions

    ╷
185 │     "r": red($color),
    │          ^^^^^^^^^^^
    ╵
    node_modules/bootstrap/scss/_functions.scss 185:10  luminance()
    node_modules/bootstrap/scss/_functions.scss 174:8   contrast-ratio()
    node_modules/bootstrap/scss/_functions.scss 159:22  color-contrast()
    node_modules/bootstrap/scss/_variables.scss 846:42  @import
    node_modules/bootstrap/scss/bootstrap.scss 8:9      @use
    src/assets/styles/base.scss 1:1                     root stylesheet

Deprecation Warning [color-functions]: green() is deprecated. Suggestion:

color.channel($color, "green", $space: rgb)

More info: https://sass-lang.com/d/color-functions

    ╷
186 │     "g": green($color),
    │          ^^^^^^^^^^^^^
    ╵
    node_modules/bootstrap/scss/_functions.scss 186:10  luminance()
    node_modules/bootstrap/scss/_functions.scss 174:8   contrast-ratio()
    node_modules/bootstrap/scss/_functions.scss 159:22  color-contrast()
    node_modules/bootstrap/scss/_variables.scss 846:42  @import
    node_modules/bootstrap/scss/bootstrap.scss 8:9      @use
    src/assets/styles/base.scss 1:1                     root stylesheet

Deprecation Warning [color-functions]: blue() is deprecated. Suggestion:

color.channel($color, "blue", $space: rgb)

More info: https://sass-lang.com/d/color-functions

    ╷
187 │     "b": blue($color)
    │          ^^^^^^^^^^^^
    ╵
    node_modules/bootstrap/scss/_functions.scss 187:10  luminance()
    node_modules/bootstrap/scss/_functions.scss 174:8   contrast-ratio()
    node_modules/bootstrap/scss/_functions.scss 159:22  color-contrast()
    node_modules/bootstrap/scss/_variables.scss 846:42  @import
    node_modules/bootstrap/scss/bootstrap.scss 8:9      @use
    src/assets/styles/base.scss 1:1                     root stylesheet

Deprecation Warning [color-functions]: red() is deprecated. Suggestion:

color.channel($color, "red", $space: rgb)

More info: https://sass-lang.com/d/color-functions

   ╷
37 │   @return red($value), green($value), blue($value);
   │           ^^^^^^^^^^^
   ╵
    node_modules/bootstrap/scss/_functions.scss 37:11   to-rgb()
    node_modules/bootstrap/scss/_variables.scss 846:31  @import
    node_modules/bootstrap/scss/bootstrap.scss 8:9      @use
    src/assets/styles/base.scss 1:1                     root stylesheet

Deprecation Warning [color-functions]: green() is deprecated. Suggestion:

color.channel($color, "green", $space: rgb)

More info: https://sass-lang.com/d/color-functions

   ╷
37 │   @return red($value), green($value), blue($value);
   │                        ^^^^^^^^^^^^^
   ╵
    node_modules/bootstrap/scss/_functions.scss 37:24   to-rgb()
    node_modules/bootstrap/scss/_variables.scss 846:31  @import
    node_modules/bootstrap/scss/bootstrap.scss 8:9      @use
    src/assets/styles/base.scss 1:1                     root stylesheet

Deprecation Warning [mixed-decls]: Sass's behavior for declarations that appear after nested
rules will be changing to match the behavior specified by CSS in an upcoming
version. To keep the existing behavior, move the declaration above the nested
rule. To opt into the new behavior, wrap the declaration in `& {}`.

More info: https://sass-lang.com/d/mixed-decls

    ┌──> node_modules/bootstrap/scss/_reboot.scss
503 │     font-weight: $legend-font-weight;
    │     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ declaration
    ╵
    ┌──> node_modules/bootstrap/scss/vendor/_rfs.scss
136 │ ┌     @media (#{$rfs-mq-property-width}: #{$rfs-mq-value}) {
137 │ │       @content;
138 │ │     }
    │ └─── nested rule
    ╵
    node_modules/bootstrap/scss/_reboot.scss 503:3   @import
    node_modules/bootstrap/scss/bootstrap.scss 16:9  @use
    src/assets/styles/base.scss 1:1                  root stylesheet

Deprecation Warning [mixed-decls]: Sass's behavior for declarations that appear after nested
rules will be changing to match the behavior specified by CSS in an upcoming
version. To keep the existing behavior, move the declaration above the nested
rule. To opt into the new behavior, wrap the declaration in `& {}`.

More info: https://sass-lang.com/d/mixed-decls

    ┌──> node_modules/bootstrap/scss/_reboot.scss
504 │     line-height: inherit;
    │     ^^^^^^^^^^^^^^^^^^^^ declaration
    ╵
    ┌──> node_modules/bootstrap/scss/vendor/_rfs.scss
136 │ ┌     @media (#{$rfs-mq-property-width}: #{$rfs-mq-value}) {
137 │ │       @content;
138 │ │     }
    │ └─── nested rule
    ╵
    node_modules/bootstrap/scss/_reboot.scss 504:3   @import
    node_modules/bootstrap/scss/bootstrap.scss 16:9  @use
    src/assets/styles/base.scss 1:1                  root stylesheet

Deprecation Warning [mixed-decls]: Sass's behavior for declarations that appear after nested
rules will be changing to match the behavior specified by CSS in an upcoming
version. To keep the existing behavior, move the declaration above the nested
rule. To opt into the new behavior, wrap the declaration in `& {}`.

More info: https://sass-lang.com/d/mixed-decls

    ┌──> node_modules/bootstrap/scss/_type.scss
38  │       font-family: $display-font-family;
    │       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ declaration
    ╵
    ┌──> node_modules/bootstrap/scss/vendor/_rfs.scss
136 │ ┌     @media (#{$rfs-mq-property-width}: #{$rfs-mq-value}) {
137 │ │       @content;
138 │ │     }
    │ └─── nested rule
    ╵
    node_modules/bootstrap/scss/_type.scss 38:5      @import
    node_modules/bootstrap/scss/bootstrap.scss 17:9  @use
    src/assets/styles/base.scss 1:1                  root stylesheet

Deprecation Warning [mixed-decls]: Sass's behavior for declarations that appear after nested
rules will be changing to match the behavior specified by CSS in an upcoming
version. To keep the existing behavior, move the declaration above the nested
rule. To opt into the new behavior, wrap the declaration in `& {}`.

More info: https://sass-lang.com/d/mixed-decls

    ┌──> node_modules/bootstrap/scss/_type.scss
39  │       font-style: $display-font-style;
    │       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ declaration
    ╵
    ┌──> node_modules/bootstrap/scss/vendor/_rfs.scss
136 │ ┌     @media (#{$rfs-mq-property-width}: #{$rfs-mq-value}) {
137 │ │       @content;
138 │ │     }
    │ └─── nested rule
    ╵
    node_modules/bootstrap/scss/_type.scss 39:5      @import
    node_modules/bootstrap/scss/bootstrap.scss 17:9  @use
    src/assets/styles/base.scss 1:1                  root stylesheet

Deprecation Warning [mixed-decls]: Sass's behavior for declarations that appear after nested
rules will be changing to match the behavior specified by CSS in an upcoming
version. To keep the existing behavior, move the declaration above the nested
rule. To opt into the new behavior, wrap the declaration in `& {}`.

More info: https://sass-lang.com/d/mixed-decls

    ┌──> node_modules/bootstrap/scss/_type.scss
40  │       font-weight: $display-font-weight;
    │       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ declaration
    ╵
    ┌──> node_modules/bootstrap/scss/vendor/_rfs.scss
136 │ ┌     @media (#{$rfs-mq-property-width}: #{$rfs-mq-value}) {
137 │ │       @content;
138 │ │     }
    │ └─── nested rule
    ╵
    node_modules/bootstrap/scss/_type.scss 40:5      @import
    node_modules/bootstrap/scss/bootstrap.scss 17:9  @use
    src/assets/styles/base.scss 1:1                  root stylesheet

在 vite_confog.

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export default defineConfig({
    plugins: [
       ....
    ],
    //加入以下
    css: {
        preprocessorOptions: {
        scss: {
            silenceDeprecations: ['mixed-decls', 'color-functions', 'global-builtin', 'import']
        },
        }
    },
JavaScript Arithmetic

js 算式

+加法

exp-1

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let x = 100 + 50;
console.log('x=', x) // x= 150

exp-2

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let a = 100;
let b = 50;
let x = a + b;
console.log('x=', x) // x= 150

exp-3

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let a = 3;
let x = (100 + 50) * a;
console.log('x=', x) // x=450

- 減法 Subtracting

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let x = 5;
let y = 2;
let z = x - y;
console.log(' z=',  z) //z=3

* 乘法 Multiplying

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let x = 5;
let y = 2;
let z = x * y;
console.log(' z=',  z) // z= 10

/ 除法 Dividing

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let x = 5;
let y = 2;
let z = x / y;
console.log(' z=',  z) // z= 2.5

餘數Remainder

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let x = 5;
let y = 2;
let z = x % y;
console.log(' z=',  z) // z=1

遞增 Incrementing

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let x = 5;
x++;
let z = x;
console.log(' z=',  z) // z= 6

遞減 Decrementing

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let x = 5;
x--;
let z = x;
console.log(' z=',  z) // z= 4

指數運算 Exponentiation

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let x = 5;
let z = x ** 2;
console.log(' z=',  z)  // z= 25

Math.pow(基底數, 指數)

Math.pow(base, exponent)

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let x = 5;
let z = Math.pow(x,2);
console.log(' z=',  z)
javascript Output

JavaScript Output 輸出

JavaScript 可以用不同的方式「顯示」資料：

  • innerHTML使用或 寫入 HTML 元素innerText。
  • 使用 寫入 HTML 輸出document.write()。
  • 使用 寫入警告框window.alert()。
  • 使用 寫入瀏覽器控制台console.log()。

innerHTML:使用該innerHTML屬性來改變 HTML 元素的 HTML 內容

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<!DOCTYPE html>
<html>
<body>

<h1>My First Web Page</h1>
<p>My First Paragraph</p>

<p id="demo"></p>

<script>
document.getElementById("demo").innerHTML = "<h2>Hello World</h2>";
</script>

</body>
</html>

innerText:使用該innerText屬性來改變 HTML 元素的內部文字

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<!DOCTYPE html>
<html>
<body>

<h1>My First Web Page</h1>
<p>My First Paragraph</p>

<p id="demo"></p>

<script>
document.getElementById("demo").innerText = "Hello World";
</script>

</body>
</html>

document.write():為了測試目的，使用起來很方便document.write()：

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<!DOCTYPE html>
<html>
<body>

<h1>My First Web Page</h1>
<p>My first paragraph.</p>

<script>
document.write(5 + 6);
</script>

</body>
</html>

window.alert()

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<!DOCTYPE html>
<html>
<body>

<h1>My First Web Page</h1>
<p>My first paragraph.</p>

<script>
window.alert(5 + 6);
</script>

</body>
</html>

console.log():為了調試目的，您可以console.log()在瀏覽器中呼叫該方法來顯示資料。

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<!DOCTYPE html>
<html>
<body>

<script>
console.log(5 + 6);
</script>

</body>
</html>
javascript

js typeof 判斷型別

typeof

JavaScript 的內建七種型別有 number、string、boolean、null、undefined、object、symbol

string
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var title="這是測試";
console.log(typeof title)
'string'
number
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var numberValue = 1;
typeof numberValue
'number'
Object
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var lists= [
    {title:'首頁',href:'home'},
    {title:'關於我',href:'about_us'},
    {title:'登入',href:'login'},
];
typeof lists
'Object'
boolean
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var isOpen = true;
typeof isOpen
'boolean'
undefined
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typeof i
'undefined'
symbol
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const sym1 = Symbol();
typeof sym1
'symbol'
null
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const foo = null;
if(foo == null){ 
    console.log('null')
}
typeof foo;
'symbol'
Null參考資料
Vite

Vue 安裝 Bootstrap 5

Vite Vue 利用cdn使用bootstrap

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<!doctype html>
<html lang="en">
    <head>
        <meta charset="utf-8">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <title>Bootstrap demo</title>
＋        <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.5/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-SgOJa3DmI69IUzQ2PVdRZhwQ+dy64/BUtbMJw1MZ8t5HZApcHrRKUc4W0kG879m7" crossorigin="anonymous">
    </head>
    <body>
＋        <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.5/dist/js/bootstrap.bundle.min.js" integrity="sha384-k6d4wzSIapyDyv1kpU366/PK5hCdSbCRGRCMv+eplOQJWyd1fbcAu9OCUj5zNLiq" crossorigin="anonymous"></script>

＋       <script src="https://cdn.jsdelivr.net/npm/@popperjs/core@2.11.8/dist/umd/popper.min.js" integrity="sha384-I7E8VVD/ismYTF4hNIPjVp/Zjvgyol6VFvRkX/vR+Vc4jQkC+hVqc2pM8ODewa9r" crossorigin="anonymous"></script>

＋<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.5/dist/js/bootstrap.min.js" integrity="sha384-VQqxDN0EQCkWoxt/0vsQvZswzTHUVOImccYmSyhJTp7kGtPed0Qcx8rK9h9YEgx+" crossorigin="anonymous"></script>
    </body>
</html>

Vue npm 安裝 Bootstrap 5

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npm install --save bootstrap

在src/assets新增scss資料夾 新增all.scss
到node_modules/scss/variables.scss另存到src/assets/scss資料夾
到node_modules/scss/variables-dark.scss另存到src/assets/scss資料夾

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//all.scss
//基本樣式
+@import "bootstrap/scss/functions";
+@import "./variables";
+@import "./variables-dark";
+@import "bootstrap/scss/bootstrap.scss"; 
//新增以下需要的樣式引入
@import "./public.scss"; 
@import "./nav.scss"; 
@import "./leftSide.scss";

在main.ts引入

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import { createApp } from 'vue'
import router from './router/router'
import { createPinia } from 'pinia'

import App from './App.vue'
import "bootstrap";
import '@/assets/scss/all.scss';