封裝一個方法獲取url上面的參數

1、取參  

function getAllUrlParams( url) {

var queryString = url ? url. split( '?')[ 1] : window. location. search. slice( 1);

var obj = {};

if ( queryString) {

queryString = queryString. split( '#')[ 0];

var arr = queryString. split( '&');

for ( var i = 0; i < arr. length; i++) {

var a = arr[ i]. split( '=');

var paramNum = undefined;

var paramName = a[ 0]. replace( / \[ \d *\] /, function ( v) {

paramNum = v. slice( 1, - 1);

return '';

});

// 設置參數值（若是爲空則設置爲true）

var paramValue = typeof ( a[ 1]) === 'undefined' ? true : a[ 1];

// paramName = paramName.toLowerCase();

// paramValue = paramValue.toLowerCase();

if ( obj[ paramName]) {

if ( typeof obj[ paramName] === 'string') {

obj[ paramName] = [ obj[ paramName]];

}

if ( typeof paramNum === 'undefined') {

obj[ paramName]. push( paramValue);

} else {

obj[ paramName][ paramNum] = paramValue;

}

} else {

obj[ paramName] = paramValue;

}

}

}

return obj;

}

console. log( getAllUrlParams( 'http://display.intdmp.com/site_login_ijf.htm?app_key=adhu3e534be06456426b&acc=asda'));

//{app_key: "adhu3e534be06456426b", acc: "asda"}

 

2、存參

 pasting

function toQueryPair( key, value, bo) {

if ( typeof value === 'undefined') {

return key;

}

return key + '=' + ( bo ? encodeURIComponent( value === null ? '' : String( value)) : value === null ? '' : String(

value));

}

const toBodyString = function ( obj, bo = true) {

let ret = [];

for ( let key in obj) {

let values = obj[ key];

if ( values && values. constructor === Array) { //數組

let queryValues = [];

for ( let i = 0, len = values. length, value; i < len; i++) {

value = values[ i];

queryValues. push( toQueryPair( key, value));

}

ret = ret. concat( queryValues);

} else { //字符串

ret. push( toQueryPair( key, values, bo));

}

}

return ret. join( '&');

}

console. log( toBodyString({

a: 123546,

b: 'fdfdfd',

c: '9999'

})); //a=123546&b=fdfdfd&c=9999