function toCamel(str) {
return str.replace(/([^_])(?:_+([^_]))/g, function ($0, $1, $2) {
console.log($0, $1, $2)
return $1 + '_' + $2.toUpperCase();
});
}
console.log(toCamel('test_to_camel'))
现在只能拿到test_To_Camel
想把第一个字母转大写的话正则该怎么改呢
str.replace(/(?:^|_)\w/g, c => c.toUpperCase());
###补充另一种正则
// => Test_To_Camel Abc_Def_G
'test_to_camel abc_def_g'.replace(/(\b|_)\w/g, item => item.toUpperCase());
###'test_to_camel'.replace(/((^|_)\w)/g, c => c.toUpperCase())
感觉不需要那个非捕获括号