Issue
I am facing an issue where I want to utilize a variable in both the mounted() and methods: sections of my Vue project. I defined the variable in the data() property within the export default {}, but despite no errors being reported, the variable doesn't seem to work as intended. How can I address this problem effectively?
Environment
My current setup involves vue version 3.9.3 and npm version 6.10.2. Additionally, I am utilizing the fabric (Javascript HTML5 canvas library) within my project, which seems to be part of the issue.
Previous Attempts
Initially, I only defined the variable within the mounted() section, which worked properly for functions called within that particular section.
var canvas = new fabric.Canvas("canvas", {
isDrawingMode: true
});
Unsuccessful Approach
Subsequently, I tried moving the content of var canvas into the data() property like this:
data() {
return {
canvas: new fabric.Canvas("canvas", { isDrawingMode: true }),
canvasControlBar: {
color: "#29066b"
}
};
},
Within the methods: section, I attempted to use the following line of code:
clearCanvas() {
this.canvas.clear();
}
Both the canvas.clear() inside mounted() and this.canvas.clear() within methods: yield the same console.log output, although they appear slightly different in the Chrome console.
The goal is to effectively use a variable defined as
new fabric.Canvas("canvas", { isDrawingMode: true })mounted() and methods: sections.
Complete Code
Full code available on Codepen.io
Console Output
- The initial log is from within
mounted()usingconsole.log(canvas.clear()); - The subsequent log is from within
data:utilizing
https://i.sstatic.net/KvkCs.pngconsole.log(this.canvas.clear());