JS:替换对象中与模式匹配的所有字符串值? [英] JS: Replacing all string values in an object that match a pattern?

问题描述

我正在寻找一种有效的方法来替换对象中与特定模式匹配的值.

I'm looking for an efficient way to replace the values within an object if they match a certain pattern.

var shapes = {
  square: {
    attr: {
      stroke: '###',
      'stroke-width': '%%%'
    }
  },
  circle: {
    attr: {
      fill: '###',
      'stroke-width': '%%%'
    }
  }
}

例如，我希望能够将所有'###'模式替换为特定形状的颜色:

For instance, i'd like to be able to replace all '###' patterns with a colour for a specific shape:

var square = replace(shapes.square, {
  '###': '#333',
  '%%%': 23
});

var circle = replace(shapes.circle, {
  '###': '#111',
  '%%%': 5
});

这将允许我快速设置各种对象的笔触和/或填充值.

Which would allow me quickly to set the stroke and/or fill values of various objects.

有没有办法做到这一点?也许使用Lodash或正则表达式?

Is there a way to do this cleanly? Perhaps using Lodash or regex?

推荐答案

在lodash中，您具有实用程序功能

In lodash, you have a utility function mapValues

function replaceStringsInObject(obj, findStr, replaceStr) {
  return _.mapValues(obj, function(value){
    if(_.isString(value)){
      return value.replace(RegEx(findStr, 'gi'), replaceStr);
    } else if(_.isObject(value)){
      return replaceStringInObject(value, findStr, replaceStr);
    } else {
      return value;
    }
  });
}

这篇关于JS:替换对象中与模式匹配的所有字符串值?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！