ISERR function

PRO BASIC

The ISERR function in Jspreadsheet Formulas Pro is a tool used to identify if a particular value has an error, with the exception of the #N/A error. If the value does contain an error, it will return the result as TRUE. However, if there is no error or if the error is #N/A, it will return FALSE. This function is very useful for quickly identifying errors in your data or calculations.

Documentation

Returns TRUE if a value is any error value except #N/A, and FALSE otherwise.

Syntax

ISERR(value)

Parameter	Description
`value`	The value or reference to the cell that you want to test.

Behavior

The ISERR function is used to check if a certain cell has an error other than #N/A error. Therefore, it returns TRUE when the cell contains an error such as #REF!, #DIV/0!, #VALUE!, #NAME?, #NUM!, or #NULL!. However, it returns FALSE for #N/A errors. Here is how it behaves with different data types:

Empty Cells: For empty cells, the ISERR function returns FALSE because these are not considered as errors.
Text: If a cell contains text, ISERR function returns FALSE unless the text forms an error value.
Booleans: For cells containing Boolean values (TRUE or FALSE), ISERR function returns FALSE because these are not errors.
Errors: The ISERR function returns TRUE for any error types except #N/A error. For #N/A error, it returns FALSE.

Common Errors

Error	Description
#VALUE!	This error occurs when the value is not appropriate or compatible with the function.
#REF!	This error is produced when a cell reference is not valid.
#DIV/0!	This error occurs when a number is divided by zero.
#NAME?	This error is returned when the spreadsheet does not recognize text in the formula.
#NUM!	This error occurs when a formula or function contains numeric values that aren't valid.
#NULL!	This error is returned when you specify an intersection of two areas that do not intersect.

Best practices

Ensure that you have sufficient error handling in your formulae. Use ISERR to check if a cell contains an error that is not #N/A.

Don't use ISERR to trap #N/A errors, use ISNA function instead.

Be aware of the kind of errors your formula might return to use the ISERR function effectively.

Remember that ISERR function doesn't consider text, boolean values, or empty cells as errors. So, use it in scenarios where you expect possible formula errors.

Usage

A few examples using the ISERR function.

ISERR(A1) returns TRUE if cell A1 contains any error value except #N/A  
ISERR(B2) returns TRUE if cell B2 contains a #DIV/0! error  
ISERR(C3+D3) returns FALSE if the formula in C3+D3 evaluates to an error value other than #N/A.

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: [
    [
        "Product",
        "Price",
        "Quantity",
        "Total",
        "Check ISERR"
    ],
    [
        "Widget A",
        10,
        5,
        "=B2*C2",
        "=ISERR(D2)"
    ],
    [
        "Widget B",
        15,
        0,
        "=B3/C3",
        "=ISERR(D3)"
    ],
    [
        "Widget C",
        "#VALUE!",
        3,
        "=B4*C4",
        "=ISERR(D4)"
    ],
    [
        "Widget D",
        20,
        "#N/A",
        "=B5*C5",
        "=ISERR(D5)"
    ]
]
  }]
});
</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 = [
    [
        "Product",
        "Price",
        "Quantity",
        "Total",
        "Check ISERR"
    ],
    [
        "Widget A",
        10,
        5,
        "=B2*C2",
        "=ISERR(D2)"
    ],
    [
        "Widget B",
        15,
        0,
        "=B3/C3",
        "=ISERR(D3)"
    ],
    [
        "Widget C",
        "#VALUE!",
        3,
        "=B4*C4",
        "=ISERR(D4)"
    ],
    [
        "Widget D",
        20,
        "#N/A",
        "=B5*C5",
        "=ISERR(D5)"
    ]
];

    // 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('MTFiMzE5MDFmM2FkYmQ4Y2M2N2M3OGUzNWJhMTRhMWU5NmI0YmQzN2E2MDEwYmE3MDhlN2Y3OWMwMmU1ZjFkNzE1Mjk1OTdkNjc5NDgxMmQ5OTFjM2U4OThhOWUyYzRlNGRjMmMzMzIyNzIwYWM1ZTVkYmM5NWMyMGVmZmU1N2UsZXlKamJHbGxiblJKWkNJNklpSXNJbTVoYldVaU9pSktjM0J5WldGa2MyaGxaWFFpTENKa1lYUmxJam94TnpZeU1qVTNNRFEyTENKa2IyMWhhVzRpT2xzaWFuTndjbVZoWkhOb1pXVjBMbU52YlNJc0ltTnZaR1Z6WVc1a1ltOTRMbWx2SWl3aWFuTm9aV3hzTG01bGRDSXNJbU56WWk1aGNIQWlMQ0p6ZEdGamEySnNhWFI2TG1sdklpd2lkMlZpWTI5dWRHRnBibVZ5TG1sdklpd2liRzlqWVd4b2IzTjBJbDBzSW5Cc1lXNGlPaUl6TkNJc0luTmpiM0JsSWpwYkluWTNJaXdpZGpnaUxDSjJPU0lzSW5ZeE1DSXNJbll4TVNJc0ltTm9ZWEowY3lJc0ltWnZjbTF6SWl3aVptOXliWFZzWVNJc0luQmhjbk5sY2lJc0luSmxibVJsY2lJc0ltTnZiVzFsYm5Seklpd2lhVzF3YjNKMFpYSWlMQ0ppWVhJaUxDSjJZV3hwWkdGMGFXOXVjeUlzSW5ObFlYSmphQ0lzSW5CeWFXNTBJaXdpYzJobFpYUnpJaXdpWTJ4cFpXNTBJaXdpYzJWeWRtVnlJaXdpYzJoaGNHVnpJaXdpWm05eWJXRjBJbDBzSW1SbGJXOGlPblJ5ZFdWOQ==');

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

export default {
    components: {
        Spreadsheet,
        Worksheet,
    },
    data() {
        // Worksheet data
        const data = [
    [
        "Product",
        "Price",
        "Quantity",
        "Total",
        "Check ISERR"
    ],
    [
        "Widget A",
        10,
        5,
        "=B2*C2",
        "=ISERR(D2)"
    ],
    [
        "Widget B",
        15,
        0,
        "=B3/C3",
        "=ISERR(D3)"
    ],
    [
        "Widget C",
        "#VALUE!",
        3,
        "=B4*C4",
        "=ISERR(D4)"
    ],
    [
        "Widget D",
        20,
        "#N/A",
        "=B5*C5",
        "=ISERR(D5)"
    ]
]

        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: [
    [
        "Product",
        "Price",
        "Quantity",
        "Total",
        "Check ISERR"
    ],
    [
        "Widget A",
        10,
        5,
        "=B2*C2",
        "=ISERR(D2)"
    ],
    [
        "Widget B",
        15,
        0,
        "=B3/C3",
        "=ISERR(D3)"
    ],
    [
        "Widget C",
        "#VALUE!",
        3,
        "=B4*C4",
        "=ISERR(D4)"
    ],
    [
        "Widget D",
        20,
        "#N/A",
        "=B5*C5",
        "=ISERR(D5)"
    ]
]
            }]
        });
    }
}

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