28 lines
587 B
JavaScript
Executable file
28 lines
587 B
JavaScript
Executable file
var utils = require('../utils');
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/**
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* Return length of the given `expr`.
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*
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* @param {Expression} expr
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* @return {Unit}
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* @api public
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*/
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(module.exports = function length(expr){
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if (expr) {
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if (expr.nodes) {
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var nodes = utils.unwrap(expr).nodes;
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if (1 == nodes.length && 'object' == nodes[0].nodeName) {
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return nodes[0].length;
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} else if (1 == nodes.length && 'string' == nodes[0].nodeName) {
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return nodes[0].val.length;
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} else {
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return nodes.length;
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}
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} else {
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return 1;
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}
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}
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return 0;
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}).raw = true;
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