UNIQUE function

PRO BASIC

The UNIQUE function in Jspreadsheet Formulas Pro is a handy tool that provides you with a list of distinct elements from a certain range or array. This means that if you have a column or row with repeated values, using this function will filter out the duplicates and only show each value once. For instance, if you have a list of student names with some names appearing more than once, the UNIQUE function will generate a new list with each student's name appearing only once. It's a simple and effective way to manage and organize your data.

Documentation

Returns a list of unique values in a range or array.

Syntax

UNIQUE(array, [by_col], [exactly_once])

Parameter	Description
`array`	The range or array from which to return unique values.
`[by_col]`	Logical value. If FALSE (default), compares rows. If TRUE, compares columns.
`[exactly_once]`	Logical value. If TRUE, returns only values that appear once. If FALSE or omitted, returns all distinct values.

Behavior

The UNIQUE function extracts a list of unique values from a range or array. This function is very useful for removing duplicate entries from a list. The behavior of the UNIQUE function is as follows:

If the range or array is empty, UNIQUE returns an error.
If there are text values in the range or array, UNIQUE will include them in the returned array.
If there are boolean values in the range or array, UNIQUE will include them in the returned array.
If there are error values in the range or array, UNIQUE will include them in the returned array.
UNIQUE function is case-sensitive, meaning it treats lowercase and uppercase versions of the same character as different.
UNIQUE function ignores cell formatting and only considers the raw data in cells.

Common Errors

Error	Description
#N/A	This error occurs when the `UNIQUE` function cannot find any unique values in the range or array.
#VALUE!	This error occurs when the `UNIQUE` function receives an inappropriate argument.
#NUM!	This error occurs when the `UNIQUE` function encounters a numerical value that it cannot process.

Best practices

Always ensure that the range or array you provide to the UNIQUE function contains valid data. The function will not work properly if the range or array contains inappropriate values.

When using the UNIQUE function, remember that it is case-sensitive. If you want to treat lowercase and uppercase versions of the same character as the same, you may need to use another function to convert all characters to the same case before using UNIQUE.

Be cautious when using the UNIQUE function with large ranges or arrays. The function can be slow and may cause performance issues if the range or array is extremely large.

Always check the output of the UNIQUE function. If the function returns an error, you will need to troubleshoot to determine the cause of the error.

Usage

A few examples using the UNIQUE function.

UNIQUE(A1:A10) returns a list of unique values in the range A1:A10  
UNIQUE(A1:B10, TRUE, TRUE) returns a list of unique values by column that appear exactly once in the range A1:B10  
UNIQUE([1,2,3;1,4,5;6,7,8]) returns [1,2,3,4,5,6,7,8]

Interactive Spreadsheet Demo

<html>
<script src="https://jspreadsheet.com/v11/jspreadsheet.js"></script>
<script src="https://jsuites.net/v5/jsuites.js"></script>
<link rel="stylesheet" href="https://jsuites.net/v5/jsuites.css" type="text/css" />
<link rel="stylesheet" href="https://jspreadsheet.com/v11/jspreadsheet.css" type="text/css" />

<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Material+Icons" />
<script src="https://cdn.jsdelivr.net/npm/@jspreadsheet/formula-pro/dist/index.min.js"></script>

<div id="spreadsheet"></div>

<script>
// Set your JSS license key (The following key only works for one day)
jspreadsheet.setLicense('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');

// Set the extensions
jspreadsheet.setExtensions({ formula });

// Create a new spreadsheet
jspreadsheet(document.getElementById('spreadsheet'), {
  worksheets: [{
    data: [
    [
        "Employee",
        "Department"
    ],
    [
        "John",
        "Sales"
    ],
    [
        "Mary",
        "HR"
    ],
    [
        "John",
        "Sales"
    ],
    [
        "Bob",
        "IT"
    ],
    [
        "Mary",
        "HR"
    ],
    [
        "Sue",
        "IT"
    ],
    [
        "=UNIQUE(A2:B7)"
    ]
]
  }]
});
</script>
</html>

import React, { useRef } from "react";
import { Spreadsheet, Worksheet, jspreadsheet } from "@jspreadsheet/react";
import formula from "@jspreadsheet/formula-pro";
import "jsuites/dist/jsuites.css";
import "jspreadsheet/dist/jspreadsheet.css";

// Set license
jspreadsheet.setLicense('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');

// Set the extensions
jspreadsheet.setExtensions({ formula });

export default function App() {
    // Spreadsheet array of worksheets
    const spreadsheet = useRef();

    // Worksheet data
    const data = [
    [
        "Employee",
        "Department"
    ],
    [
        "John",
        "Sales"
    ],
    [
        "Mary",
        "HR"
    ],
    [
        "John",
        "Sales"
    ],
    [
        "Bob",
        "IT"
    ],
    [
        "Mary",
        "HR"
    ],
    [
        "Sue",
        "IT"
    ],
    [
        "=UNIQUE(A2:B7)"
    ]
];

    // Render component
    return (
        <Spreadsheet ref={spreadsheet}>
            <Worksheet data={data} />
        </Spreadsheet>
    );
}

<template>
    <Spreadsheet ref="spreadsheet">
        <Worksheet :data="data" />
    </Spreadsheet>
</template>

<script>
import { Spreadsheet, Worksheet, jspreadsheet } from "@jspreadsheet/vue";
import "jsuites/dist/jsuites.css";
import "jspreadsheet/dist/jspreadsheet.css";
import formula from "@jspreadsheet/formula-pro";

// Set license
jspreadsheet.setLicense('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');

// Set the extensions
jspreadsheet.setExtensions({ formula });

export default {
    components: {
        Spreadsheet,
        Worksheet,
    },
    data() {
        // Worksheet data
        const data = [
    [
        "Employee",
        "Department"
    ],
    [
        "John",
        "Sales"
    ],
    [
        "Mary",
        "HR"
    ],
    [
        "John",
        "Sales"
    ],
    [
        "Bob",
        "IT"
    ],
    [
        "Mary",
        "HR"
    ],
    [
        "Sue",
        "IT"
    ],
    [
        "=UNIQUE(A2:B7)"
    ]
]

        return {
            data
        };
    }
}
</script>

import { Component, ViewChild, ElementRef } from "@angular/core";
import jspreadsheet from "jspreadsheet";
import * as formula from "@jspreadsheet/formula-pro";

// Set your JSS license key (The following key only works for one day)
jspreadsheet.setLicense('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');

// Set the extensions
jspreadsheet.setExtensions({ formula });

@Component({
    standalone: true,
    selector: "app-root",
    template: `<div #spreadsheet></div>`
})
export class AppComponent {
    @ViewChild("spreadsheet") spreadsheet: ElementRef;
    // Worksheets
    worksheets: jspreadsheet.worksheetInstance[];

    // Create a new data grid
    ngAfterViewInit() {
        // Create spreadsheet
        this.worksheets = jspreadsheet(this.spreadsheet.nativeElement, {
            worksheets: [{
                data: [
    [
        "Employee",
        "Department"
    ],
    [
        "John",
        "Sales"
    ],
    [
        "Mary",
        "HR"
    ],
    [
        "John",
        "Sales"
    ],
    [
        "Bob",
        "IT"
    ],
    [
        "Mary",
        "HR"
    ],
    [
        "Sue",
        "IT"
    ],
    [
        "=UNIQUE(A2:B7)"
    ]
]
            }]
        });
    }
}

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