Javascript：存储访问unicode时，Unicode转义序列无效(Javascript: Invalid Unicode escape sequence while storing accessing unicode)

 我在SELECT框中设置Fontawesome图标代码并访问change事件。 在访问我遇到错误： 
 
Invalid Unicode escape sequence
 
 代码如下： 
 
 HTML 
 
<select name="faicons" id="faicons" class="form-control selectpicker">
    <option value="0">Select</option>
    <option value="uF26E" class="fa fa-500px"> 500px</option>
    <option value="uF26E" class="fa fa-linkedin"> LinkedIn</option>
</select>
 
 使用Javascript 
 
function renderIcon(code) {
    var context = null;
    code = "F26E"
    var icon_code = "\u"+code;
    context = main_canvas.getContext('2d');
    context.font='32px FontAwesome';
    context.fillText(icon_code,20,75);
    context.fillText("My TEXT!", 140, 90);
}

I am setting Fontawesome Icon codes in SELECT box and accessing on change event. On accessing I am getting error:
 
Invalid Unicode escape sequence
 
Code given below:
 
HTML
 
<select name="faicons" id="faicons" class="form-control selectpicker">
    <option value="0">Select</option>
    <option value="uF26E" class="fa fa-500px"> 500px</option>
    <option value="uF26E" class="fa fa-linkedin"> LinkedIn</option>
</select>
 
Javascript
 
function renderIcon(code) {
    var context = null;
    code = "F26E"
    var icon_code = "\u"+code;
    context = main_canvas.getContext('2d');
    context.font='32px FontAwesome';
    context.fillText(icon_code,20,75);
    context.fillText("My TEXT!", 140, 90);
}

原文：https://stackoverflow.com/questions/39305351