Created
November 9, 2020 10:11
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>Paginator Vue component</title> | |
| <script src="https://unpkg.com/vue@next"></script> | |
| </head> | |
| <body> | |
| <div id="vueApp"> | |
| <div style="border: 1px solid lightcoral; padding: 10px;"> | |
| <paginator-component | |
| v-bind="paginator" | |
| ></paginator-component> | |
| </div> | |
| </div> | |
| <script> | |
| const vueApp = Vue.createApp({ | |
| data () { | |
| return { | |
| paginator: { | |
| total: 20, | |
| around: 3, | |
| current: 6 | |
| } | |
| } | |
| } | |
| }) | |
| vueApp.component('paginator-component', { | |
| props: ['total', 'around', 'current'], | |
| setup (props) { | |
| let left = props.current - props.around | |
| if (left < 1) { | |
| left = 1 | |
| } | |
| let right = props.current + props.around | |
| if (right > props.total) { | |
| right = props.total | |
| } | |
| let s = [] | |
| let t = left | |
| while (t <= right) { | |
| s.push(t) | |
| t++ | |
| } | |
| if ((s[0] - 1) > 1) { | |
| s.unshift('...') | |
| } | |
| if (props.total - s[s.length - 1] > 1) { | |
| s.push('...') | |
| } | |
| let total = [1].concat(s).concat(props.total) | |
| const pages = total.reduce((xs, x) => { | |
| if (x === '...') { | |
| xs.push(x) | |
| } else { | |
| if (xs.indexOf(x) === -1) { | |
| xs.push(x) | |
| } | |
| } | |
| return xs | |
| }, []) | |
| return { | |
| pages | |
| } | |
| }, | |
| template: ` | |
| <div> | |
| <span v-for="p in pages" style="margin-right: 10px;"> | |
| <span v-if="p === '...'">{{ p }}</span> | |
| <a v-else href="#">{{ p }}</a> | |
| </span> | |
| </div> | |
| ` | |
| }) | |
| vueApp.mount('#vueApp') | |
| </script> | |
| </body> | |
| </html> |
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>Paginator</title> | |
| </head> | |
| <body> | |
| <div id="paginator"></div> | |
| <script> | |
| const OPTS = { | |
| total: 20, | |
| around: 3, | |
| current: 6 | |
| } | |
| let left = OPTS.current - OPTS.around | |
| if (left < 1) { | |
| left = 1 | |
| } | |
| let right = OPTS.current + OPTS.around | |
| if (right > OPTS.total) { | |
| right = OPTS.total | |
| } | |
| let s = [] | |
| let t = left | |
| while (t <= right) { | |
| s.push(t) | |
| t++ | |
| } | |
| if ((s[0] - 1) > 1) { | |
| s.unshift('...') | |
| } | |
| if (OPTS.total - s[s.length - 1] > 1) { | |
| s.push('...') | |
| } | |
| let total = [1].concat(s).concat(OPTS.total) | |
| const unique = total.reduce((xs, x) => { | |
| if (x === '...') { | |
| xs.push(x) | |
| } else { | |
| if (xs.indexOf(x) === -1) { | |
| xs.push(x) | |
| } | |
| } | |
| return xs | |
| }, []) | |
| document.querySelector('#paginator').innerHTML = unique.join(' ') | |
| </script> | |
| </body> | |
| </html> |
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