Question

How can I replace:

var url = "http://localhost:2879/ServiceDonneesArchive.svc/Installations(1002)?$expand=Stations";

:

var nameInstallation = 1002;
    var url = "http://localhost:2879/ServiceDonneesArchive.svc/Installations(nameInstallation)?$expand=Stations";

Answer 1

Why do this the hard way? For this use case, simple concatenation would be very readable:

var nameInstallation = 1002;
var url =  http://localhost:2879/ServiceDonneesArchive.svc/Installations(  + nameInstallation +  )?$expand=Stations ;

Answer 2

使用https://developer.mozilla.org/en/Java/Reference/Global_Objects/String/replace” rel=“nofollow”>.replace(meth。以<代码>1002取代<编码> 姓名/编码>在<代码>url下改动的<代码>1002>:

url = url.replace(/nameInstallation/g, "1002");

或者,如果您在可变的<代码>中具有替换价值,即名称:Installation = 1002:

url = url.replace(/nameInstallation/g, nameInstallation);

EDIT: As pointed out by David Thomas, you probably don t need the g flag on the regular expression that is the first parameter to .replace(). With this "global" flag it will replace all instances of the text "nameInstallation". Without the flag it would replace only the first instance. So either include it or leave it off according to your needs. (If you only need to replace the first occurrence you also have the option of passing a string as the first parameter rather than a regex.)

Answer 3

履行这一规定的职能

// from http://www.codeproject.com/Tips/201899/String-Format-in-JavaScript
        String.prototype.format = function (args) {
            var str = this;
            return str.replace(String.prototype.format.regex, function(item) {
                var intVal = parseInt(item.substring(1, item.length - 1));
                var replace;
                if (intVal >= 0) {
                    replace = args[intVal];
                } else if (intVal === -1) {
                    replace = "{";
                } else if (intVal === -2) {
                    replace = "}";
                } else {
                    replace = "";
                }
                return replace;
            });
        };
        String.prototype.format.regex = new RegExp("{-?[0-9]+}", "g");

使用:

var url = "http://localhost:2879/ServiceDonneesArchive.svc/Installations{0}?$expand=Stations";
var nameInstallation = 1002;
var result = url.format(nameInstallation );

友情链接