Miscellaneous helpers verified

Collection of useful code snippets (helpers) in SSJS (server-side JavaScript).

Table of contents

inArray

Does a value exist in an array.

function inArray(arr, k) {

    var out = false,
        len = arr.length;

    while(len--) {
        if (arr[len] == k) out = true;
    }
    
    return out;
}

<script runat="server">

    Platform.Load("core", "1");

    try {

        var fruit = ["Apple", "Kiwi", "Tomato"];
		
        var result = inArray(fruit, "Tomato");

        Write(Stringify(result));
		
	} catch(error) {

        Write(Stringify(error));
        
    }

    function inArray(arr, k) {

        var out = false,
            len = arr.length;

        while(len--) {
            if (arr[len] == k) out = true;
        }

        return out;
    }

</script>

true

isEmpty

Is the String empty.

function isEmpty(str) {

    return (str == null || str == undefined || str.length == 0)

}

<script runat="server">

    Platform.Load("core", "1");

    try {

        var str = "";
		
        var result = isEmpty(str);

        Write(Stringify(result));
		
	} catch(error) {

        Write(Stringify(error));
        
    }

    function isEmpty(str) {

        return (str == null || str == undefined || str.length == 0)

    }

</script>

true

isEmptyObject

Is the object empty.

function isEmptyObject(obj) {

    if(obj === null) return true;

    for(var prop in obj) {

        if(Object.prototype.hasOwnProperty.call(obj, prop)) {
            return false;
        }

    }

    return JSON.stringify(obj) === JSON.stringify({});
}

<script runat="server">

    Platform.Load("core", "1");

    try {

        var o = {
            name: "Demo",
            props: {
                age: 34
            }
        };
		
        var result = isEmptyObject(o.props);

        Write(Stringify(result));
		
	} catch(error) {

        Write(Stringify(error));
        
    }

    function isEmptyObject(obj) {

        if(obj === null) return true;

        for(var prop in obj) {

            if(Object.prototype.hasOwnProperty.call(obj, prop)) {
                return false;
            }

        }

        return JSON.stringify(obj) === JSON.stringify({});
    }

</script>

false

capitalizeFirstLetter

Set the first letter of a string of characters as a capital letter.

function capitalizeFirstLetter(string) {

    return string.charAt(0).toUpperCase() + string.slice(1);

}

<script runat="server">

    Platform.Load("core", "1");

    try {

        var str = "the quick brown fox jumps over the lazy dog.";
		
        var result = capitalizeFirstLetter(str);

        Write(Stringify(result));
		
	} catch(error) {

        Write(Stringify(error));
        
    }

    function capitalizeFirstLetter(string) {

        return string.charAt(0).toUpperCase() + string.slice(1);

    }

</script>

The quick brown fox jumps over the lazy dog.

sanitizeString

Remove extra spaces, carriage returns and line breaks.

function sanitizeString(str) {

    var no_spaces = String(str).replace(/\s+/g, ' ');

    var no_breaks = String(no_spaces).replace(/(\r\n|\n|\r)/gm, '');

    return no_breaks;

}

<script runat="server">

    Platform.Load("core", "1");

    try {

        var str = "The  quick brown fox\n\r jumps over the     lazy dog.\n\r";
		
        var result = sanitizeString(str);

        Write(Stringify(result));
		
	} catch(error) {

        Write(Stringify(error));
        
    }

    function sanitizeString(str) {

        var no_spaces = String(str).replace(/\s+/g, ' ');

        var no_breaks = String(no_spaces).replace(/(\r\n|\n|\r)/gm, '');

        return no_breaks;

    }

</script>

The quick brown fox jumps over the lazy dog.

snakecaseString

Replace special characters and spaces by an underscore.

function snakecaseString(str) {

    var res = str.replace(/[^A-Z0-9]+/ig, "_");
        res = res.replace(/_+/g, '_');

    return (res.lastIndexOf("_") == res.length - 1) ? res.substring(0, res.length - 1) : res;

}

<script runat="server">

    Platform.Load("core", "1");

    try {

        var str = "Hello world | A new beginning! ^_^";
		
        var result = snakecaseString(str);

        Write(Stringify(result));
		
	} catch(error) {

        Write(Stringify(error));
        
    }

    function snakecaseString(str) {

        var res = str.replace(/[^A-Z0-9]+/ig, "_");
            res = res.replace(/_+/g, '_');

        return (res.lastIndexOf("_") == res.length - 1) ? res.substring(0, res.length - 1) : res;

    }

</script>

Hello_world_A_new_beginning

chunkString

Split a String into chunks of a predefined length.

function chunkString(str, len) {

    return str.match(new RegExp('[\\s\\S]{1,' + len + '}', 'g'));

}

<script runat="server">

    Platform.Load("core", "1");

    try {

        var str = "the quick brown fox jumps over the lazy dog.";
		
        var result = chunkString(str, 20);

        Write(Stringify(result));
		
	} catch(error) {

        Write(Stringify(error));
        
    }

    function chunkString(str, len) {

        return str.match(new RegExp('[\\s\\S]{1,' + len + '}', 'g'));

    }

</script>

[
    "the quick brown fox ",
    "jumps over the lazy ",
    "dog."
]

# Miscellaneous helpers verified

# inArray

# isEmpty

# isEmptyObject

# capitalizeFirstLetter

# sanitizeString

# snakecaseString

# chunkString