js simulates form post submission

js simulates form post submission

1.1 Overview
        Use js to dynamically create form-related elements, and then perform post submission. After submitting, delete the created form-related elements.
1.2 Examples

function postCall( url, params, target){  
    //Create a form element and set its related properties. Parameter url: the destination of the form submission; parameter target: the link opening method.
    var tempForm = document.createElement("form");  
    tempForm.action = url;  
    tempForm.method = "post";  
    tempForm.style.display="none"  
    if(target) { tempForm .target = target;  }  
    //Create an input element and set the submitted data. Parameters params: Submitted data (JSON structure).
    for (var x in params) {  
        var ipt = document.createElement("input");  
        ipt.name = x;  
        ipt.value = params[x];  
        tempForm.appendChild(ipt);  
    }  
    //Create submit button element
    var ipt = document.createElement("input");  
    ipt.type = "submit";  
    tempForm.appendChild(ipt);  
    //Create->Submit->Delete
    document.body.appendChild(tempForm);  
    tempForm.submit();  
    document.body.removeChild(tempForm);  
}  
transfer:
postcall( 'newAnime', {page_num:1,page_size:10});  
or:  
postcall( 'newAnime', {page_num:1,page_size:10}, '_blank');