Hydration has finished, but there are some discrepancies - Utilizing Ascii art within a vue component

Question

Hydration has finished, but there are some discrepancies - Utilizing Ascii art within a vue component

I encountered an issue with displaying ascii art in the {{ name }} section of my component. While developing, a Vue warning popped up:

Hydration text content mismatch in <pre>

Followed by an error message:

Hydration completed but contains mismatches.

in

runtime-core.esm-bundler.js:4525:14

During the build process, another error occurred:

Hydration completed but contains mismatches.

The source of this error can be located in dist/assets/index.js

<template>
            <div class="ascii">
                <pre id="ascii-art">{{ name }}</pre>
            </div>
    </template>
        
    <script>
    export default {
        name: "Header",
        components: {
            Prompt
        },
    
    data() {
                try {
                    return {
                        name: // ascii art
                    };
                } catch (error) {
                    // Handling the error
                    console.error("An error occurred while initializing 'name':", error);
                    return {
                        name: 'An error occurred while initializing the name property',
                    };
                }
            }
    }
    </script>

I attempted to place it within a try-catch block and log the error, yet the issue persists

javascript vue.js pre hydration

Answer 1

Answer №1

There is no distinction in hydration requirements between the resulting HTML rendered by the client and the resulting HTML rendered by the server. Therefore, the ASCII art string needs to be rendered in the mounted cycle rather than the created cycle as shown below.

<template>
            <div class="ascii">
                <pre id="ascii-art">{{ name }}</pre>
            </div>
    </template>
        
    <script>
    export default {
        name: "Header",
        components: {
            Prompt
        },
    
    data() {
                return {
                        name: 'Error occurred while initializing name property',
                    };
            },
    mounted() {
        try {
            this.name = 'ascii art';
        }
    },
    }
    </script>

Answer 2

There is no distinction in hydration requirements between the resulting HTML rendered by the client and the resulting HTML rendered by the server. Therefore, the ASCII art string needs to be rendered in the mounted cycle rather than the created cycle as shown below.

<template>
            <div class="ascii">
                <pre id="ascii-art">{{ name }}</pre>
            </div>
    </template>
        
    <script>
    export default {
        name: "Header",
        components: {
            Prompt
        },
    
    data() {
                return {
                        name: 'Error occurred while initializing name property',
                    };
            },
    mounted() {
        try {
            this.name = 'ascii art';
        }
    },
    }
    </script>

Hydration has finished, but there are some discrepancies - Utilizing Ascii art within a vue component

Answer №1

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