Nodejs String to Underscore underscore()

Here you can find the source of underscore()

Method Source Code

String.prototype.underscore = function () {
    var str = this;
    str = str.replace(/([A-Z]+)([A-Z][a-z])/g, '$1_$2');
    str = str.replace(/([a-z\d])([A-Z])/g, '$1_$2');
    str = str.replace(/\-/g, '_');
    return str.toLowerCase();
};

Related

  1. toUnderscore()
    String.prototype.toUnderscore = function() {
      var str = this;
      var modified = '';
      for (var i = 0; i < str.length; i++) {
        if (isLower(str[i])) {
          modified += str[i];
        } else {
          if (str.length > i-1) {
            if (isLower(str[i-1])) {
    ...
    
  2. underscore()
    String.prototype.underscore = function() {
      return this.replace(/([a-z\d])([A-Z]+)/g, '$1_$2').replace(/[-\s]+/g, '_').toLowerCase();
    };
    
  3. underscore()
    String.prototype.underscore = function() {
      return this.gsub(/::/, '/').gsub(/([A-Z]+)([A-Z][a-z])/,'#{1}_#{2}').gsub(/([a-z\d])([A-Z])/,'#{1}_#{2}').gsub(/-/,'_').toLowerCase();
    };
    
  4. underscore()
    String.prototype.underscore = function() {
      return this
        .replace(/::/g, '/')
        .replace(/([A-Z]+)([A-Z][a-z])/g, '$1_$2')
        .replace(/([a-z\d])([A-Z])/g, '$1_$2')
        .replace(/-/g, '_')
        .toLowerCase();
    };
    
  5. underscore()
    String.prototype.underscore = function() {
      return this.trim().toLowerCase().replace(/[\s]+/g, '_');
    
  6. underscorize()
    String.prototype.underscorize = function() {
      return this.replace(/([A-Z])/g, function($1) {
        return "_" + $1.toLowerCase();
      }).replace(/^_/g, "");
    };