/
papaparse-tests.ts
140 lines (113 loc) · 2.38 KB
/
papaparse-tests.ts
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import Papa = require("papaparse");
import {
ParseConfig,
UnparseConfig,
UnparseObject,
ParseError,
ParseMeta,
ParseResult
} from "papaparse";
import { Readable } from "stream";
/**
* Parsing
*/
var res = Papa.parse("3,3,3");
res.errors[0].code;
Papa.parse("3,3,3", {
delimiter: ';',
comments: false,
trimHeaders: false,
step: function (results, p) {
p.abort();
results.data.length;
},
dynamicTyping: true
});
Papa.parse("3,3,3", {
dynamicTyping: (field: string | number): boolean => /headerName/i.test(field.toString())
});
Papa.parse('3,3,3', {
dynamicTyping: { headerName: true },
});
Papa.parse('3,3,3', {
dynamicTyping: { 5: true },
});
Papa.parse('4,4,4', {
delimitersToGuess: [';', ','],
});
Papa.parse('4,4,4', {
delimitersToGuess: [Papa.RECORD_SEP, '|', ',', ';'],
});
Papa.parse('4;4;4', {
delimitersToGuess: ['\t', Papa.UNIT_SEP],
});
var file = new File(null, null, null);
Papa.parse(file, {
transform: function(value, field) {},
transformHeader: function(header) {
return header;
},
complete: function (a, b) {
a.meta.fields;
b.name;
},
});
// .pipe to make sure it returns a stream
Papa.parse(Papa.NODE_STREAM_INPUT, {
}).pipe
const readable = new Readable()
const rows = [
"1,2,3",
"4,5,6"
]
rows.forEach(r => {
readable.push(r);
});
const papaStream: NodeJS.ReadWriteStream = Papa.parse(Papa.NODE_STREAM_INPUT);
readable.pipe(papaStream);
// generic
Papa.parse<string>("a,b,c", {
step: function(a) {
a.data[0]
}
})
Papa.parse<string>("a,b,c", {
chunk: function(a) {
a.data[0]
}
})
Papa.parse<[string, string, string]>("a,b,c", {
complete: function(a) {
a.data[0][0]
a.data[0][1]
a.data[0][2]
}
})
/**
* Unparsing
*/
Papa.unparse([{ a: 1, b: 1, c: 1 }]);
Papa.unparse([[1, 2, 3], [4, 5, 6]]);
Papa.unparse({
fields: ["3"],
data: []
});
Papa.unparse([{ a: 1, b: 1, c: 1 }], { quotes: false });
Papa.unparse([{ a: 1, b: 1, c: 1 }], { quotes: [false, true, true] });
Papa.unparse([[1, 2, 3], [4, 5, 6]], { delimiter: "," });
Papa.unparse({
fields: ["3"],
data: []
}, { newline: "\n" });
/**
* Properties
*/
Papa.SCRIPT_PATH;
Papa.LocalChunkSize;
/**
* Parser
*/
var parser = new Papa.Parser({})
parser.getCharIndex();
parser.abort();
parser.parse("", 0, false);