1
|
var castSlice = require('./_castSlice'),
|
2
|
hasUnicode = require('./_hasUnicode'),
|
3
|
stringToArray = require('./_stringToArray'),
|
4
|
toString = require('./toString');
|
5
|
|
6
|
/**
|
7
|
* Creates a function like `_.lowerFirst`.
|
8
|
*
|
9
|
* @private
|
10
|
* @param {string} methodName The name of the `String` case method to use.
|
11
|
* @returns {Function} Returns the new case function.
|
12
|
*/
|
13
|
function createCaseFirst(methodName) {
|
14
|
return function(string) {
|
15
|
string = toString(string);
|
16
|
|
17
|
var strSymbols = hasUnicode(string)
|
18
|
? stringToArray(string)
|
19
|
: undefined;
|
20
|
|
21
|
var chr = strSymbols
|
22
|
? strSymbols[0]
|
23
|
: string.charAt(0);
|
24
|
|
25
|
var trailing = strSymbols
|
26
|
? castSlice(strSymbols, 1).join('')
|
27
|
: string.slice(1);
|
28
|
|
29
|
return chr[methodName]() + trailing;
|
30
|
};
|
31
|
}
|
32
|
|
33
|
module.exports = createCaseFirst;
|