Nodejs String Split splitOnce(delimiter)

Method Source Code

String.prototype.splitOnce = function (delimiter) {
    var components = this.split(delimiter);
    return [components.shift(), components.join(delimiter)];
};
if (!String.prototype.endsWith) {
  String.prototype.endsWith = function(searchString, position) {
      var subjectString = this.toString();
      if (position === undefined || position > subjectString.length) {
          position = subjectString.length;
      }//from ww  w  .  j  a v a2 s  . c  om
      position -= searchString.length;
      var lastIndex = subjectString.indexOf(searchString, position);
      return lastIndex !== -1 && lastIndex === position;
  };
}
if (!String.prototype.trim) {
    String.prototype.trim = function () {
        return this.replace(/^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g, '');
    };
}

Related

1. splitFirst(separator)

   String.prototype.splitFirst = function (separator) {
       var si = this.split(separator);
       var output = [];
       output.push(si[0]);
       if (si.length>1) {
           si.shift();
           output.push(si.join(separator));
       return output;
   ...
   

2. splitFirst(x)

   String.prototype.splitFirst = function(x){
     var index = this.indexOf(x);
     return [
       this.substring(0, index),
       this.substring(index + x.length)
     ]
   };
   

3. splitLast(separator)

   String.prototype.splitLast = function(separator) {
       var si = this.split(separator);
       var output = [];
       var last = si.pop();
       if (si.length > 0) {
           output.push(si.join(separator));
       if (last) {
           output.push(last);
   ...
   

4. splitLength(size)

   String.prototype.splitLength = function(size) {
       var regex = new RegExp('.{1,' + size + '}', 'g');
       return this.match(regex);
   };
   

5. splitLines(splitOptions = removeEmptyEntries: true, trim: true })

   String.prototype.splitLines = function (splitOptions = { removeEmptyEntries: true, trim: true }) {
       let lines = this.split(/\r?\n/g);
       if (splitOptions && splitOptions.trim) {
           lines = lines.filter(line => line.trim());
       if (splitOptions && splitOptions.removeEmptyEntries) {
           lines = lines.filter(line => line.length > 0);
       return lines;
   ...
   

6. splitOnce(regex)

   String.prototype.splitOnce = function (regex) {
       var match = this.match(regex);
       if (match) {
           var match_i = this.indexOf(match[0]);
           return [this.substring(0, match_i),
           this.substring(match_i + match[0].length)];
       } else {
           return [this, ""];
   

7. splitStr(delimiter)

   function reverseWords(str) {
     var result = "";
     var wordArray = str.split(" ");
     for (var i = wordArray.length - 1; i >= 0; i--) {
       result += wordArray[i] + " ";
     return result.trim(); 
   String.prototype.splitStr = function (delimiter) {
   ...
   

8. splitWord()

   String.prototype.splitWord = function () {
     return this.split(/(?=[A-Z])/).join(' ');
   };
   

9. splitchunks(s)

   String.prototype.splitchunks = function(s) {
     return s.split(/\n\n+/)