0
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ViewsFetch - is there an easier way to convert this to an array or a readable format where I can loop through it?
If I use 'application/text' and res.text(), it returns plain text and not an array. If I use res.json(), I get an invalid token at the end '<' If I JSON.stringify(final), I get a string of extra new line characters that are not parseable. Is there another way to ready this from a public folder?
Thanks
This is the sample file structure I was given, not a json but an array of object entities:
filename: newFile.dto
[
{
id: 0,
img: 'C:\\ReactProjects\\IMAGES\\DSC_0134.jpg',
test: 'another column'
},
{
id: 1,
img: 'C:\\ReactProjects\\IMAGES\\DSC_0135.jpg',
test: 'another column 1'
},
{
id: 2,
img: 'C:\\ReactProjects\\IMAGES\\DSC_0136.jpg',
test: 'another column 2'
},
{
id: 3,
img: 'C:\\ReactProjects\\IMAGES\\DSC_0137.jpg',
test: 'another column 3'
}
]
async function testFileRead()
{
let myArray = await fetch('newFile.dto',{
headers : {
'Content-Type': 'application/text',
'Accept': 'application/text'
}
}
)
.then(res =>{
return res.text(); //res.json()
})
.then(final =>{
return final;
})
}
·
Juan Pablo Isaza
1 answers
Answer question0
You could use eval() after fetch:
console.log("data", myArray); //text as string
console.log("eval", eval(myArray)); //array JS
Note Never use eval()!: Executing JavaScript from a string is an enormous security risk.
As Keith suggest use at leas is safer than eval:
const arr = new Function("return [..." + myArray + "]")();
console.log(arr.map((obj) => obj.test));// ['another column', 'another column 1', 'another column 2', 'another column 3']
·
Juan Pablo Isaza
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