javascript trim spaces at beginning and end

sure! trimming spaces from the beginning and end of a string in javascript can be done using the `trim()` method. this method removes white spaces (spaces, tabs, newlines) from both the beginning and end of a string.

here's a step-by-step tutorial on how to trim spaces from the beginning and end of a string in javascript:

1. **using the `trim()` method**: the `trim()` method is a built-in method in javascript that removes white spaces from both ends of a string. here's how you can use it:

2. **custom trim function**: if you want to create a custom function to trim spaces from the beginning and end of a string, you can use regular expressions to achieve this. here's an example:

in the code example above, the `customtrim()` function uses a regular expression to match one or more white spaces (`\s+`) at the beginning (`^`) and end (`$`) of the string and replaces them with an empty string.

by using either the `trim()` method or a custom trim function like the one above, you can easily remove spaces from the beginning and end of a string in javascript.

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