| 1 | module.exports = function (str, from, to) {
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| 2 | if (from === "dash") {
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| 3 | if (to === "lodash") {
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| 4 | str = str.replace(/\-/g, "_");
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| 5 | } else {
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| 6 | str = str.replace(/\-(\w)/g, function (all, letter) {
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| 7 | return letter.toUpperCase();
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| 8 | })
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| 9 | }
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| 10 | }
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| 11 |
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| 12 | if(from === "lodash") {
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| 13 | if (to === "dash") {
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| 14 | str = str.replace(/_/g, "-");
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| 15 | } else {
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| 16 | str = str.replace(/_(\w)/g, function (all, letter) {
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| 17 | return letter.toUpperCase();
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| 18 | })
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| 19 | }
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| 20 | }
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| 21 |
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| 22 | if(from === "camel" || from === "upper"){
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| 23 | if(to === "dash"){
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| 24 | str = str.replace(/([A-Z])/g,"-$1").toLowerCase().replace(/^-/,'');
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| 25 | }
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| 26 | if(to === "lodash"){
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| 27 | str = str.replace(/([A-Z])/g,"_$1").toLowerCase().replace(/^_/,'');
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| 28 | }
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| 29 | if(to === 'camel'){
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| 30 | str = str.replace(/^([A-Z])/,function (all, $1){
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| 31 | if($1){
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| 32 | return $1.toLowerCase() + all.substr(1);
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| 33 | }
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| 34 | return all;
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| 35 | })
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| 36 | }
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| 37 | }
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| 38 |
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| 39 | if(to === "upper"){
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| 40 | str = str[0].toUpperCase() + [].slice.call(str,1).join("")
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| 41 | }
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| 42 |
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| 43 | return str
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| 44 | }
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