NG4- AOT Build failed due to Javascript Heap Out of Memory

NG4- AOT Build failed due to Javascript Heap Out of Memory 
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It will occur build memory space is less to build our Angular 2 code.
Here we are forcing to increase memory space to build.

Many thanks! Working perfectly with
node --max_old_space_size=8192 node_modules/@angular/cli/bin/ng serve --aot
Or for build
node --max_old_space_size=8192 node_modules/@angular/cli/bin/ng build -prod


Ref: https://github.com/angular/angular/issues/20687