我如何转换字符串既像'helloThere'或'helloThere'到'HelloThere'在JavaScript?
当前回答
如果你处理的是大写骆驼的情况,这个片段可以帮助你,它还包含一些规格,所以你可以确保它适合你的情况。
export const fromCamelCaseToSentence = (word) =>
word
.replace(/([A-Z][a-z]+)/g, ' $1')
.replace(/([A-Z]{2,})/g, ' $1')
.replace(/\s{2,}/g, ' ')
.trim();
和规格:
describe('fromCamelCaseToSentence', () => {
test('does not fall with a single word', () => {
expect(fromCamelCaseToSentence('Approved')).toContain('Approved')
expect(fromCamelCaseToSentence('MDA')).toContain('MDA')
})
test('does not fall with an empty string', () => {
expect(fromCamelCaseToSentence('')).toContain('')
})
test('returns the separated by space words', () => {
expect(fromCamelCaseToSentence('NotApprovedStatus')).toContain('Not Approved Status')
expect(fromCamelCaseToSentence('GDBState')).toContain('GDB State')
expect(fromCamelCaseToSentence('StatusDGG')).toContain('Status DGG')
})
})
其他回答
试试这个库
http://sugarjs.com/api/String/titleize
'man from the boondocks'.titleize()>"Man from the Boondocks"
'x-men: the last stand'.titleize()>"X Men: The Last Stand"
'TheManWithoutAPast'.titleize()>"The Man Without a Past"
'raiders_of_the_lost_ark'.titleize()>"Raiders of the Lost Ark"
你可以使用这样的函数:
function fixStr(str) {
var out = str.replace(/^\s*/, ""); // strip leading spaces
out = out.replace(/^[a-z]|[^\s][A-Z]/g, function(str, offset) {
if (offset == 0) {
return(str.toUpperCase());
} else {
return(str.substr(0,1) + " " + str.substr(1).toUpperCase());
}
});
return(out);
}
"hello World" ==> "Hello World"
"HelloWorld" ==> "Hello World"
"FunInTheSun" ==? "Fun In The Sun"
带有一堆测试字符串的代码:http://jsfiddle.net/jfriend00/FWLuV/。
保留前导空格的替代版本:http://jsfiddle.net/jfriend00/Uy2ac/。
连续大写单词的最兼容的答案是:
常量文本 = 'theKD'; const result = text.replace(/([A-Z]{1,})/g, “$1”); const finalResult = result.charAt(0).toUpperCase() + result.slice(1); 控制台.log(最终结果);
它也与KD兼容,不会将其转换为KD。
这个对我有用看看这个
CamelcaseToWord(“名字”);//返回我的名字
function CamelcaseToWord(string){
return string.replace(/([A-Z]+)/g, " $1").replace(/([A-Z][a-z])/g, " $1");
}
我也遇到过类似的问题,我是这样处理的:
stringValue.replace(/([A-Z]+)*([A-Z][a-z])/g, "$1 $2")
对于更健壮的解决方案:
stringValue.replace(/([A-Z]+)/g, " $1").replace(/([A-Z][a-z])/g, " $1")
http://jsfiddle.net/PeYYQ/
输入:
helloThere
HelloThere
ILoveTheUSA
iLoveTheUSA
输出:
hello There
Hello There
I Love The USA
i Love The USA