如果有人正在使用lodash，则有_.camelCase()函数。

_.camelCase('Foo Bar');
// → 'fooBar'

_.camelCase('--foo-bar--');
// → 'fooBar'

_.camelCase('__FOO_BAR__');
// → 'fooBar'

我认为这应该可行。

function cammelCase(str){
    let arr = str.split(' ');
    let words = arr.filter(v=>v!='');
    words.forEach((w, i)=>{
        words[i] = w.replace(/\w\S*/g, function(txt){
            return txt.charAt(0).toUpperCase() + txt.substr(1);
        });
    });
    return words.join('');
}

我的ES6方法:

const camelCase = str => {
  let string = str.toLowerCase().replace(/[^A-Za-z0-9]/g, ' ').split(' ')
                  .reduce((result, word) => result + capitalize(word.toLowerCase()))
  return string.charAt(0).toLowerCase() + string.slice(1)
}

const capitalize = str => str.charAt(0).toUpperCase() + str.toLowerCase().slice(1)

let baz = 'foo bar'
let camel = camelCase(baz)
console.log(camel)  // "fooBar"
camelCase('foo bar')  // "fooBar"
camelCase('FOO BAR')  // "fooBar"
camelCase('x nN foo bar')  // "xNnFooBar"
camelCase('!--foo-¿?-bar--121-**%')  // "fooBar121"

此函数通过通过cammelcase等这些测试

Foo酒吧 ——foo bar __FOO_BAR__ - foo123Bar foo_Bar

function toCamelCase(str) { var arr= str.match(/[a-z]+|\d+/gi); return arr.map((m,i)=>{ let low = m.toLowerCase(); if (i!=0){ low = low.split('').map((s,k)=>k==0?s.toUpperCase():s).join`` } return low; }).join``; } console.log(toCamelCase('Foo Bar')); console.log(toCamelCase('--foo-bar--')); console.log(toCamelCase('__FOO_BAR__-')); console.log(toCamelCase('foo123Bar')); console.log(toCamelCase('foo_Bar')); console.log(toCamelCase('EquipmentClass name')); console.log(toCamelCase('Equipment className')); console.log(toCamelCase('equipment class name')); console.log(toCamelCase('Equipment Class Name'));

您可以使用以下解决方案:

function toCamelCase(str){
  return str.split(' ').map(function(word,index){
    // If it is the first word make sure to lowercase all the chars.
    if(index == 0){
      return word.toLowerCase();
    }
    // If it is not the first word only upper case the first char and lowercase the rest.
    return word.charAt(0).toUpperCase() + word.slice(1).toLowerCase();
  }).join('');
}

如果有人正在使用lodash，则有_.camelCase()函数。

_.camelCase('Foo Bar');
// → 'fooBar'

_.camelCase('--foo-bar--');
// → 'fooBar'

_.camelCase('__FOO_BAR__');
// → 'fooBar'