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node_modules/stylus/lib/functions/length.js 480 Bytes
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ce4c83ff   wxy   初始提交 
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  var utils = require('../utils');
  
  /**
   * Return length of the given `expr`.
   *
   * @param {Expression} expr
   * @return {Unit}
   * @api public
   */
  
  (module.exports = function length(expr){
    if (expr) {
      if (expr.nodes) {
        var nodes = utils.unwrap(expr).nodes;
        if (1 == nodes.length && 'object' == nodes[0].nodeName) {
          return nodes[0].length;
        } else {
          return nodes.length;
        }
      } else {
        return 1;
      }
    }
    return 0;
  }).raw = true;