LEN function

PRO BASIC

The LEN function in Jspreadsheet Formulas Pro is a useful tool that allows you to determine the length of a specific text string. This means it counts the total number of characters within your chosen text. For example, if you use LEN on the text string "Hello World", it will return the number 11, which includes both the letters and the space between the words. This can be particularly helpful when you need to manage and analyze large amounts of text data.

Documentation

Returns the number of characters in a text string.

Syntax

LEN(text)

Parameter	Description
`text`	The text string whose length you want to find.

Behavior

The LEN function is used to calculate the length of a string, i.e., the number of characters present in a cell. Here's how it handles different types of inputs:

Empty cells: If the LEN function is applied to an empty cell, it returns 0 as there are no characters in the cell.
Text: When used on a cell containing text, LEN counts all characters including spaces, numbers, special characters, and punctuation.
Booleans: If a cell contains a boolean value (TRUE or FALSE), LEN treats it as text and returns the number of characters in the text representation of the boolean.
Errors: If the LEN function is used on a cell that contains an error, it will also return an error.
Numbers: When used on a cell containing a number, LEN counts the number of digits in the number. Decimal points and negative signs are also included in the count.
Dates and Times: When used on a cell containing a date or time, LEN treats it as a numeric value and returns the number of characters in its numeric representation.

Common Errors

Error	Description
#VALUE!	This error occurs if the `LEN` function is used on a cell that contains an unsupported value type like an array or a range.
#REF!	This error is returned when the cell reference provided is not valid.

Best practices

Always ensure that the cell you are applying the LEN function to contains text, numbers, booleans, or dates. Using this function on unsupported value types will result in an error.

Remember that LEN counts all characters including spaces, numbers, special characters, punctuation, decimal points, and negative signs. Consider this when interpreting the results.

If you want to count only the number of specific characters in a cell, you may need to use additional functions in combination with LEN.

Be cautious when using LEN on cells that contain dates or times, as it treats them as numeric values and returns the length of their numeric representation, which may not be the expected result.

Usage

A few examples using the LEN function.

LEN('apple') returns 5  
LEN('banana') returns 6  
LEN('cherry') returns 6

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 Name",
        "Character Count"
    ],
    [
        "iPhone 15 Pro",
        "=LEN(A2)"
    ],
    [
        "MacBook Air",
        "=LEN(A3)"
    ],
    [
        "AirPods Pro",
        "=LEN(A4)"
    ],
    [
        "Apple Watch",
        "=LEN(A5)"
    ]
]
  }]
});
</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('OTNmZjRjZjgzMzk5MWYyZmFjMDNhYzI2ZmNmNGIxN2Q4MTcxNjQwNGY1YWU3ZjUzOGQ4NjFlMzkwMjljNjk1NGYzOGEzNGZiZDQyMTJlZWNmOTM0NzYzNTk4OGQ5NWMwZmY3MzZjZTM0OTVlYTAzNzA5ZmI2Y2UzYWE3ZTQ1YzksZXlKamJHbGxiblJKWkNJNklpSXNJbTVoYldVaU9pSktjM0J5WldGa2MyaGxaWFFpTENKa1lYUmxJam94TnpVM01ETXhNRFF5TENKa2IyMWhhVzRpT2xzaWFuTndjbVZoWkhOb1pXVjBMbU52YlNJc0ltTnZaR1Z6WVc1a1ltOTRMbWx2SWl3aWFuTm9aV3hzTG01bGRDSXNJbU56WWk1aGNIQWlMQ0p6ZEdGamEySnNhWFI2TG1sdklpd2lkMlZpWTI5dWRHRnBibVZ5TG1sdklpd2lkMlZpSWl3aWJHOWpZV3hvYjNOMElsMHNJbkJzWVc0aU9pSXpOQ0lzSW5OamIzQmxJanBiSW5ZM0lpd2lkamdpTENKMk9TSXNJbll4TUNJc0luWXhNU0lzSW1Ob1lYSjBjeUlzSW1admNtMXpJaXdpWm05eWJYVnNZU0lzSW5CaGNuTmxjaUlzSW5KbGJtUmxjaUlzSW1OdmJXMWxiblJ6SWl3aWFXMXdiM0owWlhJaUxDSmlZWElpTENKMllXeHBaR0YwYVc5dWN5SXNJbk5sWVhKamFDSXNJbkJ5YVc1MElpd2ljMmhsWlhSeklpd2lZMnhwWlc1MElpd2ljMlZ5ZG1WeUlpd2ljMmhoY0dWeklpd2labTl5YldGMElsMHNJbVJsYlc4aU9uUnlkV1Y5');

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

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

    // Worksheet data
    const data = [
    [
        "Product Name",
        "Character Count"
    ],
    [
        "iPhone 15 Pro",
        "=LEN(A2)"
    ],
    [
        "MacBook Air",
        "=LEN(A3)"
    ],
    [
        "AirPods Pro",
        "=LEN(A4)"
    ],
    [
        "Apple Watch",
        "=LEN(A5)"
    ]
];

    // 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('OTNmZjRjZjgzMzk5MWYyZmFjMDNhYzI2ZmNmNGIxN2Q4MTcxNjQwNGY1YWU3ZjUzOGQ4NjFlMzkwMjljNjk1NGYzOGEzNGZiZDQyMTJlZWNmOTM0NzYzNTk4OGQ5NWMwZmY3MzZjZTM0OTVlYTAzNzA5ZmI2Y2UzYWE3ZTQ1YzksZXlKamJHbGxiblJKWkNJNklpSXNJbTVoYldVaU9pSktjM0J5WldGa2MyaGxaWFFpTENKa1lYUmxJam94TnpVM01ETXhNRFF5TENKa2IyMWhhVzRpT2xzaWFuTndjbVZoWkhOb1pXVjBMbU52YlNJc0ltTnZaR1Z6WVc1a1ltOTRMbWx2SWl3aWFuTm9aV3hzTG01bGRDSXNJbU56WWk1aGNIQWlMQ0p6ZEdGamEySnNhWFI2TG1sdklpd2lkMlZpWTI5dWRHRnBibVZ5TG1sdklpd2lkMlZpSWl3aWJHOWpZV3hvYjNOMElsMHNJbkJzWVc0aU9pSXpOQ0lzSW5OamIzQmxJanBiSW5ZM0lpd2lkamdpTENKMk9TSXNJbll4TUNJc0luWXhNU0lzSW1Ob1lYSjBjeUlzSW1admNtMXpJaXdpWm05eWJYVnNZU0lzSW5CaGNuTmxjaUlzSW5KbGJtUmxjaUlzSW1OdmJXMWxiblJ6SWl3aWFXMXdiM0owWlhJaUxDSmlZWElpTENKMllXeHBaR0YwYVc5dWN5SXNJbk5sWVhKamFDSXNJbkJ5YVc1MElpd2ljMmhsWlhSeklpd2lZMnhwWlc1MElpd2ljMlZ5ZG1WeUlpd2ljMmhoY0dWeklpd2labTl5YldGMElsMHNJbVJsYlc4aU9uUnlkV1Y5');

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

export default {
    components: {
        Spreadsheet,
        Worksheet,
    },
    data() {
        // Worksheet data
        const data = [
    [
        "Product Name",
        "Character Count"
    ],
    [
        "iPhone 15 Pro",
        "=LEN(A2)"
    ],
    [
        "MacBook Air",
        "=LEN(A3)"
    ],
    [
        "AirPods Pro",
        "=LEN(A4)"
    ],
    [
        "Apple Watch",
        "=LEN(A5)"
    ]
]

        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('OTNmZjRjZjgzMzk5MWYyZmFjMDNhYzI2ZmNmNGIxN2Q4MTcxNjQwNGY1YWU3ZjUzOGQ4NjFlMzkwMjljNjk1NGYzOGEzNGZiZDQyMTJlZWNmOTM0NzYzNTk4OGQ5NWMwZmY3MzZjZTM0OTVlYTAzNzA5ZmI2Y2UzYWE3ZTQ1YzksZXlKamJHbGxiblJKWkNJNklpSXNJbTVoYldVaU9pSktjM0J5WldGa2MyaGxaWFFpTENKa1lYUmxJam94TnpVM01ETXhNRFF5TENKa2IyMWhhVzRpT2xzaWFuTndjbVZoWkhOb1pXVjBMbU52YlNJc0ltTnZaR1Z6WVc1a1ltOTRMbWx2SWl3aWFuTm9aV3hzTG01bGRDSXNJbU56WWk1aGNIQWlMQ0p6ZEdGamEySnNhWFI2TG1sdklpd2lkMlZpWTI5dWRHRnBibVZ5TG1sdklpd2lkMlZpSWl3aWJHOWpZV3hvYjNOMElsMHNJbkJzWVc0aU9pSXpOQ0lzSW5OamIzQmxJanBiSW5ZM0lpd2lkamdpTENKMk9TSXNJbll4TUNJc0luWXhNU0lzSW1Ob1lYSjBjeUlzSW1admNtMXpJaXdpWm05eWJYVnNZU0lzSW5CaGNuTmxjaUlzSW5KbGJtUmxjaUlzSW1OdmJXMWxiblJ6SWl3aWFXMXdiM0owWlhJaUxDSmlZWElpTENKMllXeHBaR0YwYVc5dWN5SXNJbk5sWVhKamFDSXNJbkJ5YVc1MElpd2ljMmhsWlhSeklpd2lZMnhwWlc1MElpd2ljMlZ5ZG1WeUlpd2ljMmhoY0dWeklpd2labTl5YldGMElsMHNJbVJsYlc4aU9uUnlkV1Y5');

// 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 Name",
        "Character Count"
    ],
    [
        "iPhone 15 Pro",
        "=LEN(A2)"
    ],
    [
        "MacBook Air",
        "=LEN(A3)"
    ],
    [
        "AirPods Pro",
        "=LEN(A4)"
    ],
    [
        "Apple Watch",
        "=LEN(A5)"
    ]
]
            }]
        });
    }
}

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