JQuery से Svelte तक चले जाओ, क्योंकि यह थे

परिचय

बाइंडिंग वैरिएबल (बाइंडिंग, मैपिंग)

<script>
    import DetailTaskView from './DetailTaskView.svelte';
    let task = {};
    let isModal = false;
    function renderTask(data) {
        const isSuccess = data.hasOwnProperty(0);
        if (isSuccess) {
            isModal = true;
            task = data[0];
        }
    }
    import {fade} from 'svelte/transition';
</script>
{#if isModal}
    <div transition:fade>
        <DetailTaskView bind:isModal="{isModal}" {...task}/>
    </div>
{/if}

हमने क्या किया है?

घटना बुदबुदाई

<!-- App.svelte   -->
<script>
    import SearchForm from './SearchForm.svelte';
    async function applySample(event) {
        const sample = event.detail.sample;
        if(sample){
            search(sample);
        }
        if(!sample){
            renderPage();
        }
    }
</script>
<div class="container">
    <h1>  </h1>
    <SearchForm on:search={applySample}/>
</div>

<!-- SearchForm.svelte    -->
<script>
	import { createEventDispatcher } from 'svelte';
	const dispatch = createEventDispatcher();
	let sample = '';
    function search(event) {
        event.preventDefault();
        dispatch('search', {
            sample: sample
        });
    }
</script>
<form class="form-horizontal" id="search"
on:submit={search}>
    <div class="form-group">
        <label class="control-label col-sm-2" for="sample">
        
        </label>
        <div class="col-sm-10">
            <input id="sample" class="form-control" type="search"
             placeholder="  "
             autocomplete="on" bind:value={sample}
             />
        </div>
    </div>
</form>

यहाँ क्या चल रहा है ?

एक घटक में क्या होता है?

अनिवार्य से घोषणात्मक तक संक्रमण

<!-- Paging.svelte        -->
<script>
    import {createEventDispatcher} from 'svelte';
    import OrdinalPlace from './OrdinalPlace.svelte';
    let pagingPlaces;
    //         pagingPlaces
    function addPlace(
        paging = [], index = Number.NEGATIVE_INFINITY,
        text = "", css = "") {
        paging.push({index:index,text:text,css:css});

        return paging;
    }
    const dispatch = createEventDispatcher();
    function browsePage(event) {
        const pageIndex = event.detail.index;
        dispatch('move', {
            index: pageIndex
        });
    }
</script>

{#if pagingPlaces.length}
    <table class = "table table-hover-cells table-bordered">
        <tbody>
            <tr>
            {#each pagingPlaces as place (place.index)}
                <OrdinalPlace on:move="{browsePage}"
                {...place}>
                </OrdinalPlace>
            {/each}
            </tr>
        </tbody>
    </table>
{/if}

<!-- OrdinalPlace.svelte     ""      -->
<script>
    export let index = -1;
    export let text = "";
    export let css = "";

    let number = index +1;
    function skip() {
        return !(text === "");
    }

    let letSkip = skip();
    let noSkip = !letSkip;

    import { createEventDispatcher } from "svelte";
    const dispatch = createEventDispatcher();
    function moveTo() {
        if(noSkip){
            dispatch("move", {index:index});
        }
    }
</script>
<td class="{css}" on:click="{moveTo}">
    {#if letSkip}
        {text}
    {/if}
    {#if noSkip}
        {number}
    {/if}
</td>

यह काम किस प्रकार करता है ?

सबसे बड़ा घात

            {#each pagingPlaces as place (place.index)}
                <OrdinalPlace on:move="{browsePage}"
                {...place}>
                </OrdinalPlace>
            {/each}

            {#each pagingPlaces as place (place.index)}

दृश्यात्मक प्रभाव

{#if isModal}
    <div transition:fade>
        <DetailTaskView bind:isModal="{isModal}" {...task}/>
    </div>
{/if}

अन्य

चर नाम

अजाक्स

निष्कर्ष

संदर्भ