未捕获的TypeError:无法在JavaScript函数中读取null(...)的属性“1” [英] Uncaught TypeError: Cannot read property '1' of null(…) in a JavaScript function
本文介绍了未捕获的TypeError:无法在JavaScript函数中读取null(...)的属性“1”的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
此方法是模块的一部分;尽管有错误...
This method is part of a module; And despite the error...
未捕获TypeError:无法读取null(...)的属性'1'
在很小程度上起作用,但它似乎阻止了模块上的其他方法。
works to a small degree, however it appears to have blocked an additional method on the module.
这是小提琴,其中包含整个模块。
This is a fiddle which contains the whole module.
searchURL: function() {
function insertAfter(newNode, referenceNode) {
referenceNode.parentNode.insertBefore(newNode, referenceNode.nextSibling);
}
var link, url, parser, newPathName = '',
newstr = '',
doc = document,
avon_rep_container = doc.getElementById('avon_rep_container'),
avon_rep_container_id,
avon_rep_container_links,
avon_rep_container_images,
documentTableWrapper,
docBodyFirstChild,
full_width_container_1 = doc.getElementsByClassName('full-width-container')[1],
full_width_img_class_el = doc.getElementsByClassName('full-width-img')[0];
if (!avon_rep_container) {
avon_rep_container = doc.createElement('div');
avon_rep_container.setAttribute('id', 'avon_rep_container');
avon_rep_container.className = 'container-avon-representative-news';
avon_rep_container_links = avon_rep_container.getElementsByTagName('a');
avon_rep_container_id = doc.getElementById('avon_rep_container');
docBodyFirstChild = doc.body.firstChild;
documentTableWrapper = doc.getElementsByClassName('marginfix')[0];
avon_rep_container.appendChild(documentTableWrapper);
doc.body.appendChild(avon_rep_container);
full_width_container_1.removeChild(full_width_container_1.getElementsByTagName('table')[0]);
full_width_img_class_el.removeAttribute('style');
} else {
avon_rep_container_links = doc.getElementById('avon_rep_container').getElementsByTagName('a');
}
avon_rep_container_images = avon_rep_container.getElementsByTagName('img');
for (var i = 0; i < avon_rep_container_images.length; i++) {
var images = avon_rep_container_images[i];
images.src = '/dam/avon-us/landing-pages/rep-news/' + images.src.split('/').pop();
if (avon_rep_container_images[i].width == "538") {
avon_rep_container_images[i].style.width = "538px";
}
if (avon_rep_container_images[i].width == "258") {
avon_rep_container_images[i].style.width = "258px";
}
avon_rep_container_images[i].style.width = 'inherit';
avon_rep_container_images[i].style.margin = 'auto';
}
//for (var i = 0, len = arguments.length; i < len; i++) { // Using a for loop to allow unlimited arguments to be passed in
//instead collect all necessary urls
url = getURL(arguments); //[i]); // We are calling the publicApi.getURL() method and passing the looped argument from above
for (var j = 0, jlen = avon_rep_container_links.length; j < jlen; j++) { // This loop goes over the whole documents links...
link = avon_rep_container_links[j];
var domain = link.href.match(/(https?:\/\/.+?)\//)[1];
if ((url.indexOf(domain) !== -1) && (!link.href.match(/\.(pdf)/gi))) { // //...and we are checking each argument passed in to see if it matches the object value stored in the getURL function e.g. like a switch statement..
parser = document.createElement('a'); //...if so we are essentially adding a blank tag to all the documents in the document
parser.href = link.href;
link.setAttribute('target', '_self');
newPathName = parser.pathname;
console.log(domain);
if (newPathName.search(/Executive|District|Division|National/) != -1) { // Added check for these strings for SMO page
newPathName = newPathName.split('/').pop();
newstr = newPathName;
} else {
newstr = newPathName;
}
link.href = newstr;
} else {
link.setAttribute('target', '_blank');
}
}
//}
}
可以解释一下错误在我的模块的上下文中意味着什么,似乎无法理解它。
Can one explain what the error means in context to my Module, can't seem to understand it.
感谢任何帮助将不胜感激!
Thanks any help will be appreciated!
更新
这是发生错误的地方:
var domain=link.href.match(/(https?:\/\/.+?)\//)[1];
推荐答案
字符串#matc
返回 null
(不匹配)或包含匹配项的数组。
String#match
returns either null
(no match) or an array with the matches.
var domain = link.href.match(/(https?:\/\/.+?)\//)[1];
// ^^^^^
检查解决方法
var domain = link.href.match(/(https?:\/\/.+?)\//);
if (domain) {
// do something with domain[1]
}
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