WebGLRenderingContext.isShader()

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.

WebGL API 中的 WebGLRenderingContext.isShader() 方法,在传入的 WebGLShader 有效时返回 true ,否则返回 false

语法

GLboolean gl.isShader(shader);

参数

shader

需要校验的 WebGLShader

返回值

用来表明 shader 是否有效的 GLboolean 对象

示例

校验一个 Shader

js
var canvas = document.getElementById("canvas");
var gl = canvas.getContext("webgl");
var shader = gl.createShader(gl.VERTEX_SHADER);

// ...

gl.isShader(shader);

规范

Specification
WebGL Specification
# 5.14.9

浏览器兼容性

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
isShader

Legend

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Full support
Full support

参阅