url请求带参编码及解码

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encodeURI编码

encodeURI("https://developer.mozilla.org/ru/docs/JavaScript_编码");//"https://developer.mozilla.org/ru/docs/JavaScript_%E7%BC%96%E7%A0%81"

decodeURI解码

decodeURI("https://developer.mozilla.org/ru/docs/JavaScript_%E7%BC%96%E7%A0%81")// "https://developer.mozilla.org/ru/docs/JavaScript_编码"

encodeURIComponent编码

console.log(encodeURIComponent('编码'));// %E7%BC%96%E7%A0%81

encodeURIComponent解码

console.log(decodeURIComponent('%E7%BC%96%E7%A0%81'));// 编码

escape编码 //不推荐使用

escape('编码');// "%u7F16%u7801"

unescape解码

unescape("%u7F16%u7801");// "编码"

Int8Array,Int16Array,Int32Array,Float32Array,Float64Array,Uint16Array,Uint32Array,

Uint8Array,Uint8ClampedArray我也不知道怎么用，可以看下例子，都是一样的用法

// From a lengthvar int8 = new Int8Array(2);int8[0] = 42;console.log(int8[0]); // 42console.log(int8.length); // 2console.log(int8.BYTES_PER_ELEMENT); // 1// From an arrayvar arr = new Int8Array([21,31]);console.log(arr[1]); // 31// From another TypedArrayvar x = new Int8Array([21, 31]);var y = new Int8Array(x);console.log(y[0]); // 21// From an ArrayBuffervar buffer = new ArrayBuffer(8);var z = new Int8Array(buffer, 1, 4);

isFinite() 函数用于检查其参数是否是无穷大

isFinite(Infinity);  // falseisFinite(NaN);       // falseisFinite(-Infinity); // falseisFinite(0);         // trueisFinite(2e64);      // trueisFinite(null);      // true

isNaN()函数用于检查其参数是否是非数字值

isNaN(NaN);       // trueisNaN(undefined); // trueisNaN({});        // trueisNaN(true);      // falseisNaN(null);      // falseisNaN(37);        // false// stringsisNaN("37");      // false: "37" is converted to the number 37 which is not NaNisNaN("37.37");   // false: "37.37" is converted to the number 37.37 which is not NaNisNaN("123ABC");  // true:  parseInt("123ABC") is 123 but Number("123ABC") is NaNisNaN("");        // false: the empty string is converted to 0 which is not NaNisNaN(" ");       // false: a string with spaces is converted to 0 which is not NaN// datesisNaN(new Date());                // falseisNaN(new Date().toString());     // true

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