在Javascript对象中查找数据

Question

I have a javascript object I am creating from a database call. It will have multiple items and I will need to be able to reference one by a specific key/value (moduleID).

success: function(data) {

        // Define our local vars
        var moduleIncludes = Array();

        // Loop over each of the users selected modules and put them into an array
        $(data).find('modules').each(function() {

            // Push module JS file names to an array
            moduleIncludes.push($(this).find('moduleJSFile').text());

            // Create an object of module data
            moduleData.push({
              moduleID: $(this).find('moduleID').text(),
              moduleRow: $(this).find('row').text(),
              moduleColumn: $(this).find('col').text(),
              moduleName: $(this).find('moduleName').text(),
              moduleDescription: $(this).find('moduleDescription').text(),
              moduleJSFile: $(this).find('moduleJSFile').text(),
              moduleIcon: $(this).find('moduleIcon').text(),
              moduleStartingXsize: $(this).find('startingXsize').text(),
              moduleStartingYsize: $(this).find('startingYsize').text(),
              moduleResizeLocked: $(this).find('resizeLocked').text(),
              moduleMinXsize: $(this).find('minXsize').text(),
              moduleMinYsize: $(this).find('minYsize').text()
            });
        });

        // Using our array of modules, fetch them to include them into the page
        $.getMultiScripts(moduleIncludes, 'includes/js/modules/').done(function() {
            // All of the modules have been included. Trigger the grid functionality.
            renderCanvas();
        });
    }
});

Instead of having to loop over each one to find what I am looking for, is there a way I can name the object by the moduleID instead since its unique?

For example, if I want to see all the data pertaining to moduleId 1, I would like to be able to just search the object by ID rather than loop it to find it.

Can I achieve this in my creation?

Answer 1

maybe what you need is more like:

moduleIncludes = {};
moduleIncludes[Id] = {"moduleRow":$(this).find('row').text() ...};

doing like this, you'll be able to request a specific module directly from ID.

Answer 2

You can use filter() function for searching object.

Document in w3schools .

Example: Filter by object ID

function matchId(id) {
    return moduleData.moduleID == id;
}

data = moduleData.filter(matchId);

It is more simple than you write a loop with for or foreach .

Goodluck and have fun!