Does javascript have a trim function?
Example 1Remove spaces with trim(): Show let text = " Hello World! "; Try it Yourself » Remove spaces with replace() using a regular expression: let text = " Hello World!
"; Try it Yourself » Definition and UsageThe The SyntaxParametersReturn Value
Browser Support
ES5 (JavaScript 2009) fully supported in all browsers:
The A new string representing If neither the beginning or end of To return a new string with whitespace
trimmed from just one end, use The following example displays the lowercase string Specifications
Browser compatibilityBCD tables only load in the browser See alsoThe trim() is a built-in string function in JavaScript, which is used to trim a string. This function removes the whitespace from both the ends, i.e., start and end of the string. As the trim() is a string method, so it is invoked by an instance of the String class. We have to create an instance of String class with which the trim() method will be used. Note - The trim() method does not change the original string; it just removes the leading and trailing whitespace character.SyntaxThe syntax of trim() method is as follows: Here, str is a String class of object that will contain the string to be trimmed. ParametersThe trim() method does not have any arguments or parameters inside it. Return ValueThe string.trim() function returns the string after removing whitespace character from that string from the beginning and end of the string. ExamplesBelow are some examples, which are using trim() function to remove the elements from it. In these examples, you will see how to use this JavaScript function. So, here are a few examples - Example 1 In this example, we will pass a string containing whitespace at both ends. Below is the example of the String trim() Method.
JavaScript
GeeksForGeeks str.trim() method is used to remove the white spaces from both the ends of the given string. Syntax: str.trim() Return value: Examples for the above method are provided below: Example 1: var str = "GeeksforGeeks "; var st = str.trim(); print(st); Output: GeeksForGeeks In this example the trim() method removes all the leading and the trailing spaces in the string str. Example 2: var str = " GeeksforGeeks"; var st = str.trim(); print(st); Output: GeeksForGeeks In this example the trim() method removes all the leading and the trailing spaces in the string str. Codes for the above method are provided below: Program 1: JavaScript
Output: GeeksForGeeks Program 2: JavaScript
Output: GeeksForGeeks str.trimLeft() Syntax: str.trimLeft() Return value: Examples for the above method are provided below: Example 1: var str = " GeeksforGeeks "; var st = str.trimLeft(); print(st); Output: GeeksForGeeks In this example the trimLeft() method removes all the leading spaces, but the trailing spaces in the string str remain as they are. Example 2: var str = " GeeksforGeeks"; var st = str.trim(); print(st); Output: GeeksForGeeks In this example the trimLeft() method removes all the leading spaces from str. Codes for the above method are provided below: Program 1: JavaScript
Output: GeeksForGeeks Program 2: JavaScript
Output: GeeksForGeeks str.trimRight() Syntax: str.trimRight() Return value: Examples for the above method are provided below: Example 1: var str = "GeeksforGeeks "; var st = str.trimRight(); print(st); Output: GeeksForGeeks In this example the trimRight() method removes all the trailing spaces from the string str. Example 2: var str = " GeeksforGeeks"; var st = str.trimRight(); print(st); Output: GeeksForGeeks In this example the trimRight() method does not remove the leading spaces from str. Codes for the above method are provided below: Program 1: JavaScript
Output: GeeksForGeeks Program 2: JavaScript
Output: GeeksForGeeks Supported Browser:
How do you trim a character in JavaScript?To trim leading and trailing whitespace from a string in JavaScript, you should use the String. prototype. trim() method. The trim() method removes leading and trailing whitespace characters, including tabs and newlines.
How do you trim a sentence in JavaScript?JavaScript String trim()
The trim() method removes whitespace from both sides of a string. The trim() method does not change the original string.
How do you trim an array in JavaScript?To trim all strings in an array:
Use the map() method to iterate over the array and call the trim() method on each array element. The map method will return a new array, containing only strings with the whitespace from both ends removed.
What does trim () do in node JS?The trim() function is a string function of Node. js which is used to remove white spaces from the string. Parameter: This function does not accepts any parameter. Return Value: The function returns the string without white spaces.
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