[英]Why doesn't this simple data initialisation function work in this vue component?
I have a vue 3 component.我有一个 vue 3 组件。 The relevant script code below;相关脚本代码如下;
<script>
/* eslint-disable */
export default {
name: "BarExample",
data: dataInitialisation,
methods: {
updateChart,
}
};
function dataInitialisation()
{
return {
chartOptions: {
plotOptions: {
bar: {
horizontal: true
}
},
xaxis: {
//categories: [1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999],
categories: [1991, 1992],
}
},
series: [
{
name: "series-1",
data: [30, 40],
}
]
};
}
</script>
The above code works fine.上面的代码工作正常。
However, if I were to modify the function dataInitialisation()
code into this;但是,如果我将函数dataInitialisation()
代码修改为这个;
function dataInitialisation()
{
init_data = {
chartOptions: {
plotOptions: {
bar: {
horizontal: true
}
},
xaxis: {
//categories: [1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999],
categories: [1991, 1992],
}
},
series: [
{
name: "series-1",
data: [30, 40],
}
]
};
return init_data;
}
With the function above, the vue website turned blank and no error message appeared.有了上面的功能,vue网站变成空白,没有出现错误信息。 What is wrong?怎么了? Both functions look pretty much the same to me.这两个功能在我看来几乎相同。
EDIT: I noticed another strange behaviour.编辑:我注意到另一个奇怪的行为。 I added a meaningless line x=2
to the function and this caused the website to go blank too.我在函数中添加了一条无意义的行x=2
,这也导致网站空白。
function dataInitialisation()
{
x = 2; //meaningless line caused website to go blank
return {
chartOptions: {
plotOptions: {
bar: {
horizontal: true
}
},
xaxis: {
//categories: [1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999],
categories: [1991, 1992],
}
},
series: [
{
name: "series-1",
data: [30, 40],
}
]
};
}
I will answer my own question.我会回答我自己的问题。 I got the answer thanks to @3limin4t0r in the comment section.感谢评论部分中的@3limin4t0r,我得到了答案。
I made a rookie mistake.我犯了一个菜鸟错误。 I forgot the let
in front of the variable init_data
.我忘了let
在变量前面init_data
。 There was no error message in javascript. javascript 中没有错误消息。
function dataInitialisation() {
let init_data = {
chartOptions: {
plotOptions: {
bar: {
horizontal: true,
},
},
xaxis: {
//categories: [1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999],
categories: [1991, 1992],
},
},
series: [
{
name: "series-1",
data: [30, 40],
},
],
};
return init_data;
}
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