Javascript trim whitespace

Javascript trim whitespace function is used to remove whitespace from the string . include starting point and ending point of string

Syntax

string.trim()  function remove whitespace from both starting and ending point of string

Example

<script> var str = ' John the Don ' var trimstr = str.trim(); </script>

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Parameter Details

Technical Details

Browser Support

trimLeft / trimStart

trimLeft or trimStart function used to remove whitespace from starting point of string

Example

<script>  var str = ' John the Don '  var trimLeft = str.trimLeft(); // ' John the Don ' </script>

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trimRight / trimEnd

trimRight or trimEnd used  to remove whitespace from ending point of string

Example

<script>  var str = ' John the Don '  str.trimRight(); ' John the Don' </script>

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Tips - trimStart is alias of  trimLeft

Tips - trimEnd is alias of trimRight

Note - trim function doesn't' throw error if no whitespace are available in string i.e starting or ending point of string doesn't' have whitespace