js檔案之間傳遞值
阿新 • • 發佈:2018-11-23
問題背景:
做web頁面展示資料分頁的時候,找了一個分頁外掛來用,外掛直接引入一個js,外掛全部都是js動態生成的,不好操作,但自己頁面的js需要計算當前頁,及總頁數,這就需要把自己計算的結果與外掛中的值統一,,所以需要在js檔案之間傳值.
解決辦法:
使用cookie set值以後去另一個js檔案get值即可.
具體例項步驟:
一 .引入 jquery.cookie.js 內容如下:
二. 在需要傳值的頁面加入如下程式碼/** * Cookie plugin * * Copyright (c) 2006 Klaus Hartl (stilbuero.de) * Dual licensed under the MIT and GPL licenses: * http://www.opensource.org/licenses/mit-license.php * http://www.gnu.org/licenses/gpl.html * */ /** * Create a cookie with the given name and value and other optional parameters. * * @example $.cookie('the_cookie', 'the_value'); * @desc Set the value of a cookie. * @example $.cookie('the_cookie', 'the_value', { expires: 7, path: '/', domain: 'jquery.com', secure: true }); * @desc Create a cookie with all available options. * @example $.cookie('the_cookie', 'the_value'); * @desc Create a session cookie. * @example $.cookie('the_cookie', null); * @desc Delete a cookie by passing null as value. Keep in mind that you have to use the same path and domain * used when the cookie was set. * * @param String name The name of the cookie. * @param String value The value of the cookie. * @param Object options An object literal containing key/value pairs to provide optional cookie attributes. * @option Number|Date expires Either an integer specifying the expiration date from now on in days or a Date object. * If a negative value is specified (e.g. a date in the past), the cookie will be deleted. * If set to null or omitted, the cookie will be a session cookie and will not be retained * when the the browser exits. * @option String path The value of the path atribute of the cookie (default: path of page that created the cookie). * @option String domain The value of the domain attribute of the cookie (default: domain of page that created the cookie). * @option Boolean secure If true, the secure attribute of the cookie will be set and the cookie transmission will * require a secure protocol (like HTTPS). * @type undefined * * @name $.cookie * @cat Plugins/Cookie * @author Klaus Hartl/
[email protected] */ /** * Get the value of a cookie with the given name. * * @example $.cookie('the_cookie'); * @desc Get the value of a cookie. * * @param String name The name of the cookie. * @return The value of the cookie. * @type String * * @name $.cookie * @cat Plugins/Cookie * @author Klaus Hartl/[email protected] */ jQuery.cookie = function(name, value, options) { if (typeof value != 'undefined') { // name and value given, set cookie options = options || {}; if (value === null) { value = ''; options = $.extend({}, options); // clone object since it's unexpected behavior if the expired property were changed options.expires = -1; } var expires = ''; if (options.expires && (typeof options.expires == 'number' || options.expires.toUTCString)) { var date; if (typeof options.expires == 'number') { date = new Date(); date.setTime(date.getTime() + (options.expires * 24 * 60 * 60 * 1000)); } else { date = options.expires; } expires = '; expires=' + date.toUTCString(); // use expires attribute, max-age is not supported by IE } // NOTE Needed to parenthesize options.path and options.domain // in the following expressions, otherwise they evaluate to undefined // in the packed version for some reason... var path = options.path ? '; path=' + (options.path) : ''; var domain = options.domain ? '; domain=' + (options.domain) : ''; var secure = options.secure ? '; secure' : ''; document.cookie = [name, '=', encodeURIComponent(value), expires, path, domain, secure].join(''); } else { // only name given, get cookie var cookieValue = null; if (document.cookie && document.cookie != '') { var cookies = document.cookie.split(';'); for (var i = 0; i < cookies.length; i++) { var cookie = jQuery.trim(cookies[i]); // Does this cookie string begin with the name we want? if (cookie.substring(0, name.length + 1) == (name + '=')) { cookieValue = decodeURIComponent(cookie.substring(name.length + 1)); break; } } } return cookieValue; } };
/* cookie儲存
-------------------------------------- */
function GetCookie(name) {
return $.cookie(name);
};
function SetCookie(name, data) {
$.cookie(name, data, {
expires: 100
});
$.cookie(name, data, {
path: "/"
});
};
以及設定值
SetCookie("pageCounts",pageCounts);
取值
newPage = GetCookie("index");