trim.js•1.11 kB
var _curry1 = require('./internal/_curry1');
/**
* Removes (strips) whitespace from both ends of the string.
*
* @func
* @memberOf R
* @since v0.6.0
* @category String
* @sig String -> String
* @param {String} str The string to trim.
* @return {String} Trimmed version of `str`.
* @example
*
* R.trim(' xyz '); //=> 'xyz'
* R.map(R.trim, R.split(',', 'x, y, z')); //=> ['x', 'y', 'z']
*/
module.exports = (function() {
var ws = '\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003' +
'\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028' +
'\u2029\uFEFF';
var zeroWidth = '\u200b';
var hasProtoTrim = (typeof String.prototype.trim === 'function');
if (!hasProtoTrim || (ws.trim() || !zeroWidth.trim())) {
return _curry1(function trim(str) {
var beginRx = new RegExp('^[' + ws + '][' + ws + ']*');
var endRx = new RegExp('[' + ws + '][' + ws + ']*$');
return str.replace(beginRx, '').replace(endRx, '');
});
} else {
return _curry1(function trim(str) {
return str.trim();
});
}
}());